{"kind": "tool", "major": "18", "item": {"slug": "dropdb", "name": "dropdb", "name_zh": "", "category": "\u5ba2\u6237\u7aef\u7a0b\u5e8f", "summary": "dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93", "aliases": ["dropdb"], "content_hash": "c56a09a82b81cb986308e476a29302b72b6ae91a7589492aa14b1fb2f8d6de3f", "versions": {"10": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "10.23"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "11"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/10/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/10/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/10/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/10/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/10/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/10/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/10/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/10/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/10/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/10/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/10/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/10/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "label": "10.23", "major": "10", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/10/postgresql-10-A4.pdf", "bytes": 12631706, "pages": 2591, "sha256": "34497ab9efb45c5bdf1bd11b9016b5451354feb462fa029cf74557a5fa5fbbc1", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/10/postgresql-10-US.pdf", "bytes": 12531684, "pages": 2724, "sha256": "429cc7133ddf4f97c560aa466dc9caea4b718721a8321e293357037cf0af4733", "built_at": "2026-09-26"}}, "tree": "10", "index": "index.html", "major": "10", "pages": 1085, "release": "10.23", "source_url": "https://ftp.postgresql.org/pub/source/v10.23/postgresql-10.23.tar.bz2", "svg_assets": 0, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "revision": "f9301feba91e2e2566038a36b8cee0e4402db68989538f88670fddd20b1f78ea", "evidence_kind": "English manual and source declarations", "source_sha256": "94a4b2528372458e5662c18d406629266667c437198160a18cdfd2c4a4d6eee9"}, "sources": [{"url": "https://pg.center/docs/10/app-dropdb.html", "file": "app-dropdb.html", "label": "10.23 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "b39a2404a577681b0877c68de3a1a1fb8527da3a456e686f1764cfe925d7c982", "language": "en", "original_url": "/docs/10/app-dropdb.html"}, {"url": "https://pg.center/docs/10/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "e4330732b6acd6c025a1fbdce45574b23d964de847a1b849ea88b98ab628d2e2", "language": "en", "original_url": "/docs/10/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4<a class=\"xref\" href=\"/docs/10/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u7684\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/10/libpq.html#LIBPQ-CONNSTRING\" title=\"33.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6<span class=\"productname\">PostgreSQL</span>\u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span>\u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/10/libpq-envars.html\" title=\"33.14.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a033.14\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u82e5\u9047\u5230\u56f0\u96be\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/10/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/10/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\uff0c\u5176\u4e2d\u8ba8\u8bba\u4e86\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u8fd0\u884c\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u4e5f\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre></div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2>\n<span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/10/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/10/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span></div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/10/app-dropdb.html", "method": "same-major semantic node", "sha256": "2b3089a4481f45831baee5de7f832bff536ede209f0e6e6cc20230d143c49c3d", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/10/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/10/facts/0/label": "Documented executable", "/versions/10/facts/1/label": "Executable version", "/versions/10/facts/2/label": "Reference inventory", "/versions/10/facts/2/value": "Client applications", "/versions/10/facts/3/label": "Option definition groups", "/versions/10/tables/0/title": "Documented options", "/versions/10/tables/1/title": "Environment variables", "/versions/10/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/10/tables/0/rows/1/summary": "Issues a verification prompt before doing anything destructive.", "/versions/10/tables/0/rows/2/summary": "Print the dropdb version and exit.", "/versions/10/tables/0/rows/3/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/10/tables/0/rows/4/summary": "Show help about dropdb command line arguments, and exit.", "/versions/10/tables/0/rows/5/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/10/tables/0/rows/6/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/10/tables/0/rows/7/summary": "User name to connect as.", "/versions/10/tables/0/rows/8/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/10/tables/0/rows/9/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/10/tables/0/columns/0/label": "Option and arguments", "/versions/10/tables/0/columns/1/label": "Description", "/versions/10/tables/0/rows/10/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/10/tables/1/columns/0/label": "Variable", "/versions/10/tables/1/columns/1/label": "Meaning", "/versions/10/tables/1/rows/0/description": "Default connection parameters"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "590d13d296b624370dbc9d45cf204b153e1c6d1deb3f408697cd82736f80be5e"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}]}, "comparison_hash": "d906eb64744add1165ba1ad329b44be6492080d24c523c1af60e36e1b029175a", "manual_language": "zh"}, "11": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "11.22"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "11"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/11/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/11/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/11/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/11/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/11/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/11/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/11/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/11/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/11/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/11/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/11/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/11/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "label": "11.22", "major": "11", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/11/postgresql-11-A4.pdf", "bytes": 13057499, "pages": 2732, "sha256": "41d75855e610d0d9b8802b87dc5b080bef8d7e91c7cf69401fbf8d3cf801b4b5", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/11/postgresql-11-US.pdf", "bytes": 12961189, "pages": 2883, "sha256": "6a8899ef36935a5b7ed2b436207564a567a4ef1eb1c2200195876b8de4d4fa30", "built_at": "2026-09-26"}}, "tree": "11", "index": "index.html", "major": "11", "pages": 1125, "release": "11.22", "source_url": "https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2", "svg_assets": 0, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "revision": "53315ddaf3b3f9e6669fd1edc096bbb2cd4a65ea3e836c89e542b43af9ba3a7f", "evidence_kind": "English manual and source declarations", "source_sha256": "2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"}, "sources": [{"url": "https://pg.center/docs/11/app-dropdb.html", "file": "app-dropdb.html", "label": "11.22 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "a5e970a61a807b0b64ea21252aa399cea4577dfaa4d43b97726bb4f212a43822", "language": "en", "original_url": "/docs/11/app-dropdb.html"}, {"url": "https://pg.center/docs/11/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "3a30e696058b118a55cc42892c39671d9bae86f77e1024d5ebcc4688ad9ab4c3", "language": "en", "original_url": "/docs/11/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4<a class=\"xref\" href=\"/docs/11/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/11/libpq.html#LIBPQ-CONNSTRING\" title=\"34.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/11/libpq-envars.html\" title=\"34.14.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a034.14\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/11/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/11/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/11/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/11/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/11/app-dropdb.html", "method": "same-major semantic node", "sha256": "288fde1b34eb5e8d52c8b37161ac524a8eb47241f2b1438e3d7fa66ae52b95d2", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/11/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/11/facts/0/label": "Documented executable", "/versions/11/facts/1/label": "Executable version", "/versions/11/facts/2/label": "Reference inventory", "/versions/11/facts/2/value": "Client applications", "/versions/11/facts/3/label": "Option definition groups", "/versions/11/tables/0/title": "Documented options", "/versions/11/tables/1/title": "Environment variables", "/versions/11/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/11/tables/0/rows/1/summary": "Issues a verification prompt before doing anything destructive.", "/versions/11/tables/0/rows/2/summary": "Print the dropdb version and exit.", "/versions/11/tables/0/rows/3/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/11/tables/0/rows/4/summary": "Show help about dropdb command line arguments, and exit.", "/versions/11/tables/0/rows/5/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/11/tables/0/rows/6/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/11/tables/0/rows/7/summary": "User name to connect as.", "/versions/11/tables/0/rows/8/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/11/tables/0/rows/9/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/11/tables/0/columns/0/label": "Option and arguments", "/versions/11/tables/0/columns/1/label": "Description", "/versions/11/tables/0/rows/10/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/11/tables/1/columns/0/label": "Variable", "/versions/11/tables/1/columns/1/label": "Meaning", "/versions/11/tables/1/rows/0/description": "Default connection parameters"}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "037d57e07ee0840915d30598e8e4e655a19770b5f625701cd8d0925e5c2cf6e9"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}]}, "comparison_hash": "d906eb64744add1165ba1ad329b44be6492080d24c523c1af60e36e1b029175a", "manual_language": "zh"}, "12": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "12.22"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "11"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/12/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/12/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/12/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/12/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/12/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/12/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/12/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/12/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/12/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/12/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/12/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/12/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "label": "12.22", "major": "12", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/12/postgresql-12-A4.pdf", "bytes": 13424351, "pages": 2803, "sha256": "7422cf53fd1939e7a3d2925231a88b0330e468afa5393627cac0ff86158a0621", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/12/postgresql-12-US.pdf", "bytes": 13322565, "pages": 2958, "sha256": "51f3b04e72907fc38512685946223452ea65f84419c60c66241dfa3396035e77", "built_at": "2026-09-26"}}, "tree": "12", "index": "index.html", "major": "12", "pages": 1131, "release": "12.22", "source_url": "https://ftp.postgresql.org/pub/source/v12.22/postgresql-12.22.tar.bz2", "svg_assets": 2, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "revision": "7a827e97cbfacd7febff75f34443e2043e40723de5b6d8c9d81a9430b65a37e4", "evidence_kind": "English manual and source declarations", "source_sha256": "8df3c0474782589d3c6f374b5133b1bd14d168086edbc13c6e72e67dd4527a3b"}, "sources": [{"url": "https://pg.center/docs/12/app-dropdb.html", "file": "app-dropdb.html", "label": "12.22 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "8c1e3369b335ad130df0bb67e854fe204cac7eefa58df0c98bb935aefd45676d", "language": "en", "original_url": "/docs/12/app-dropdb.html"}, {"url": "https://pg.center/docs/12/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "089624dd131f52eea682b304f87a1acb03392ee7bcf78b000699c9b17c7ca22d", "language": "en", "original_url": "/docs/12/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4<a class=\"xref\" href=\"/docs/12/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4ee5\u4e0b\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/12/libpq.html#LIBPQ-CONNSTRING\" title=\"33.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/12/libpq-envars.html\" title=\"33.14.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a033.14\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/12/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/12/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/12/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/12/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/12/app-dropdb.html", "method": "same-major semantic node", "sha256": "07fa18556358e82f7dac6d4be226bedde8a360dff3db0b169099ee86bf8b7192", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/12/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/12/facts/0/label": "Documented executable", "/versions/12/facts/1/label": "Executable version", "/versions/12/facts/2/label": "Reference inventory", "/versions/12/facts/2/value": "Client applications", "/versions/12/facts/3/label": "Option definition groups", "/versions/12/tables/0/title": "Documented options", "/versions/12/tables/1/title": "Environment variables", "/versions/12/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/12/tables/0/rows/1/summary": "Issues a verification prompt before doing anything destructive.", "/versions/12/tables/0/rows/2/summary": "Print the dropdb version and exit.", "/versions/12/tables/0/rows/3/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/12/tables/0/rows/4/summary": "Show help about dropdb command line arguments, and exit.", "/versions/12/tables/0/rows/5/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/12/tables/0/rows/6/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/12/tables/0/rows/7/summary": "User name to connect as.", "/versions/12/tables/0/rows/8/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/12/tables/0/rows/9/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/12/tables/0/columns/0/label": "Option and arguments", "/versions/12/tables/0/columns/1/label": "Description", "/versions/12/tables/0/rows/10/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/12/tables/1/columns/0/label": "Variable", "/versions/12/tables/1/columns/1/label": "Meaning", "/versions/12/tables/1/rows/0/description": "Default connection parameters", "/versions/12/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "eb481c36e36bb1731f6f634098364d20cd2a9d09f5881439774e2bd5854cf7b9"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "33d61f567d867c0ef682b5090775e9963ccd455a53117fc5b5a933c04b84ab4c", "manual_language": "zh"}, "13": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "13.23"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/13/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/13/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/13/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/13/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/13/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/13/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/13/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/13/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/13/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/13/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/13/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/13/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/13/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "label": "13.23", "major": "13", "channel": "historical", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/13/postgresql-13-A4.pdf", "bytes": 13843239, "pages": 2826, "sha256": "171cc09f90936dbc1cbd503a98ff07ae72ea58ab9771ff051313f1217737799c", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/13/postgresql-13-US.pdf", "bytes": 13739572, "pages": 2984, "sha256": "48d09c6e197d9db4220f41afe83efe848a8661b1b168d3b89419751ecaf6c24d", "built_at": "2026-09-26"}}, "tree": "13", "index": "index.html", "major": "13", "pages": 1139, "release": "13.23", "source_url": "https://ftp.postgresql.org/pub/source/v13.23/postgresql-13.23.tar.bz2", "svg_assets": 3, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "revision": "614ee3133270254e476c118cdf6f72af78d4e4b8bbd9b28ed9ab1e14e4e9c0f6", "evidence_kind": "English manual and source declarations", "source_sha256": "6ec3c82726af92b7dec873fa1cdf881eca92a4219787dfad05acb6b10e041fd6"}, "sources": [{"url": "https://pg.center/docs/13/app-dropdb.html", "file": "app-dropdb.html", "label": "13.23 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "fb5847b2c6a257c62daf42d2c57e6752516cc9e67d7b0131078b097a4ffb50f3", "language": "en", "original_url": "/docs/13/app-dropdb.html"}, {"url": "https://pg.center/docs/13/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "2a16c2982d9803edd4bd6920f76b66083e7f2959182d6a3bcec7ccfbac0a9ad8", "language": "en", "original_url": "/docs/13/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4<a class=\"xref\" href=\"/docs/13/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/13/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/13/libpq.html#LIBPQ-CONNSTRING\" title=\"33.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/13/libpq-envars.html\" title=\"33.14.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a033.14\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/13/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/13/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/13/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/13/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/13/app-dropdb.html", "method": "same-major semantic node", "sha256": "647ed3ca39e9c1004a0f1bee2a0bdd7e585545f6be233263d217c179cf2e14c3", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/13/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/13/facts/0/label": "Documented executable", "/versions/13/facts/1/label": "Executable version", "/versions/13/facts/2/label": "Reference inventory", "/versions/13/facts/2/value": "Client applications", "/versions/13/facts/3/label": "Option definition groups", "/versions/13/tables/0/title": "Documented options", "/versions/13/tables/1/title": "Environment variables", "/versions/13/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/13/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/13/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/13/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/13/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/13/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/13/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/13/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/13/tables/0/rows/8/summary": "User name to connect as.", "/versions/13/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/13/tables/0/columns/0/label": "Option and arguments", "/versions/13/tables/0/columns/1/label": "Description", "/versions/13/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/13/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/13/tables/1/columns/0/label": "Variable", "/versions/13/tables/1/columns/1/label": "Meaning", "/versions/13/tables/1/rows/0/description": "Default connection parameters", "/versions/13/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "7aac93cc7b36b76d58e3f124160956fc49844a83a49092304b6d0ddea19c5549"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "14": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "14.24"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/14/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/14/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/14/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/14/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/14/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/14/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/14/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/14/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/14/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/14/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/14/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/14/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/14/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "label": "14.24", "major": "14", "channel": "stable", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/14/postgresql-14-A4.pdf", "bytes": 14354704, "pages": 2944, "sha256": "8bc6b9dd7b246888bb77f0a5e8c39a2eae52e9926569832669c7d1600becb27c", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/14/postgresql-14-US.pdf", "bytes": 14242178, "pages": 3102, "sha256": "b7ecb5a5f62d8b9f73a69e25a7d26ba285373bc53168a553bff7b77955506db4", "built_at": "2026-09-26"}}, "tree": "14", "index": "index.html", "major": "14", "pages": 1158, "release": "14.24", "source_url": "https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2", "svg_assets": 3, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "revision": "588700d46356d8837c77c7c0a4e71e645fe6535983b8f1830aa8f2e4e41c40ae", "evidence_kind": "English manual and source declarations", "source_sha256": "a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"}, "sources": [{"url": "https://pg.center/docs/14/app-dropdb.html", "file": "app-dropdb.html", "label": "14.24 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "8ad6d892f37dec150d467c2a4b78a3244902a454220d8e8258bdb4816f858995", "language": "en", "original_url": "/docs/14/app-dropdb.html"}, {"url": "https://pg.center/docs/14/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "5a13567a052954dfe494dfaab9f50919faa1ae56023930fdbb78d45e53feccde", "language": "en", "original_url": "/docs/14/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/14/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/14/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/14/libpq.html#LIBPQ-CONNSTRING\" title=\"34.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/14/libpq-envars.html\" title=\"34.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a034.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/14/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/14/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/14/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/14/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/14/app-dropdb.html", "method": "same-major semantic node", "sha256": "c6d19d3bdc935a67b65e133c22dc70b19ee8030988c1823d7e31769ab9f02c08", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/14/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/14/facts/0/label": "Documented executable", "/versions/14/facts/1/label": "Executable version", "/versions/14/facts/2/label": "Reference inventory", "/versions/14/facts/2/value": "Client applications", "/versions/14/facts/3/label": "Option definition groups", "/versions/14/tables/0/title": "Documented options", "/versions/14/tables/1/title": "Environment variables", "/versions/14/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/14/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/14/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/14/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/14/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/14/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/14/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/14/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/14/tables/0/rows/8/summary": "User name to connect as.", "/versions/14/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/14/tables/0/columns/0/label": "Option and arguments", "/versions/14/tables/0/columns/1/label": "Description", "/versions/14/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/14/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/14/tables/1/columns/0/label": "Variable", "/versions/14/tables/1/columns/1/label": "Meaning", "/versions/14/tables/1/rows/0/description": "Default connection parameters", "/versions/14/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "f6770c287416e5b10c243b369b920746949860d6e6964b0f64a1541f84273095"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "15": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "15.19"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/15/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/15/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/15/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/15/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/15/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/15/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/15/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/15/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/15/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/15/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/15/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/15/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/15/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "label": "15.19", "major": "15", "channel": "stable", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/15/postgresql-15-A4.pdf", "bytes": 14609140, "pages": 2987, "sha256": "66228564a4d16efb47d6a914085716ecfe22ca1566db56bc7c3d82f790646d72", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/15/postgresql-15-US.pdf", "bytes": 14495690, "pages": 3153, "sha256": "645a498c2390d47a6223ec74770631185807a19c484edb0fc5a295d9f460bc02", "built_at": "2026-09-26"}}, "tree": "15", "index": "index.html", "major": "15", "pages": 1168, "release": "15.19", "source_url": "https://ftp.postgresql.org/pub/source/v15.19/postgresql-15.19.tar.bz2", "svg_assets": 3, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "revision": "6af958c6520151fc7697d56e0616b03fb00522c4568158674d452ae0644ba545", "evidence_kind": "English manual and source declarations", "source_sha256": "e1a64a87a46b825b88c082e4518161a47aab53c45694964f8ba1df28f7859f89"}, "sources": [{"url": "https://pg.center/docs/15/app-dropdb.html", "file": "app-dropdb.html", "label": "15.19 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "dd2161573ea601df5c5b026d916a8d1ac3b460c6bc727299e6b4046d43d922fd", "language": "en", "original_url": "/docs/15/app-dropdb.html"}, {"url": "https://pg.center/docs/15/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "015b2ea2bd205946a55a1b837e735570631bac831c92074a6bf58444f9a3cb98", "language": "en", "original_url": "/docs/15/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/15/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/15/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/15/libpq.html#LIBPQ-CONNSTRING\" title=\"34.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/15/libpq-envars.html\" title=\"34.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a034.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/15/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/15/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/15/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/15/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/15/app-dropdb.html", "method": "same-major semantic node", "sha256": "4d28075701d2f730f0cf2a04882fb5e15b57bec2711a4e1cbe5c21e489d32657", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/15/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/15/facts/0/label": "Documented executable", "/versions/15/facts/1/label": "Executable version", "/versions/15/facts/2/label": "Reference inventory", "/versions/15/facts/2/value": "Client applications", "/versions/15/facts/3/label": "Option definition groups", "/versions/15/tables/0/title": "Documented options", "/versions/15/tables/1/title": "Environment variables", "/versions/15/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/15/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/15/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/15/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/15/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/15/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/15/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/15/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/15/tables/0/rows/8/summary": "User name to connect as.", "/versions/15/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/15/tables/0/columns/0/label": "Option and arguments", "/versions/15/tables/0/columns/1/label": "Description", "/versions/15/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/15/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/15/tables/1/columns/0/label": "Variable", "/versions/15/tables/1/columns/1/label": "Meaning", "/versions/15/tables/1/rows/0/description": "Default connection parameters", "/versions/15/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "a367b01006e707918c29b59e915aa51cc352bff6addfc503c18eb4d0027e643c"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "16": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "16.15"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/16/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/16/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/16/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/16/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/16/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/16/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/16/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/16/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/16/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/16/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/16/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/16/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/16/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "label": "16.15", "major": "16", "channel": "stable", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/16/postgresql-16-A4.pdf", "bytes": 15282337, "pages": 3055, "sha256": "4bb6c1f63deedac98736d8c4c7bc0fad0ac24e85b07e21ee10411872f06afd06", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/16/postgresql-16-US.pdf", "bytes": 15164148, "pages": 3220, "sha256": "5b6b6166c89991199e144bb0ae34c17a5f29826251dbf19db1abc0df3a3e771b", "built_at": "2026-09-26"}}, "tree": "16", "index": "index.html", "major": "16", "pages": 1169, "release": "16.15", "source_url": "https://ftp.postgresql.org/pub/source/v16.15/postgresql-16.15.tar.bz2", "svg_assets": 3, "source_mode": "en HTML verified against the pinned official archive", "source_sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "revision": "3c21e58b35318021716440e67bb8bafd392b6a2b965a244d90e9e33c99e0bdef", "evidence_kind": "English manual and source declarations", "source_sha256": "c1575341fa7bd40f5274ea465b34390f4dc64cdd0770af327005caaeb9f6b7ed"}, "sources": [{"url": "https://pg.center/docs/16/app-dropdb.html", "file": "app-dropdb.html", "label": "16.15 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "99ca7a4c52c33fd0b86977c272540798c997974475d67ee421da487b74fbcd59", "language": "en", "original_url": "/docs/16/app-dropdb.html"}, {"url": "https://pg.center/docs/16/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "a28c30c3c0f8783e16d56413a0b6fd39487e336da1683b29b60abf1c229cef26", "language": "en", "original_url": "/docs/16/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/16/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/16/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/16/libpq-connect.html#LIBPQ-CONNSTRING\" title=\"34.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/16/libpq-envars.html\" title=\"34.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a034.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/16/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/16/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/16/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/16/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/16/app-dropdb.html", "method": "same-major semantic node", "sha256": "8fb6a6e2f171acdcaa745ae73433d89e1f564d8b48849614c8649e554bba9644", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/16/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/16/facts/0/label": "Documented executable", "/versions/16/facts/1/label": "Executable version", "/versions/16/facts/2/label": "Reference inventory", "/versions/16/facts/2/value": "Client applications", "/versions/16/facts/3/label": "Option definition groups", "/versions/16/tables/0/title": "Documented options", "/versions/16/tables/1/title": "Environment variables", "/versions/16/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/16/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/16/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/16/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/16/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/16/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/16/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/16/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/16/tables/0/rows/8/summary": "User name to connect as.", "/versions/16/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/16/tables/0/columns/0/label": "Option and arguments", "/versions/16/tables/0/columns/1/label": "Description", "/versions/16/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/16/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/16/tables/1/columns/0/label": "Variable", "/versions/16/tables/1/columns/1/label": "Meaning", "/versions/16/tables/1/rows/0/description": "Default connection parameters", "/versions/16/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "487e98cc52ed156a494bc35dfa821049acd6cee280fad5b7b93a6abd2538f2b8"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "17": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "17.11"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/17/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/17/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/17/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/17/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/17/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/17/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/17/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/17/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/17/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/17/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/17/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/17/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/17/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "label": "17.11", "major": "17", "channel": "stable", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/17/postgresql-17-A4.pdf", "bytes": 15521293, "pages": 3099, "sha256": "1991354df0dc89e70ec39328c28988ef8b19c6a93671dab3893650b63e9f4e36", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/17/postgresql-17-US.pdf", "bytes": 15398150, "pages": 3270, "sha256": "07696c8f38abf31babf22d2db337093936e7c472d2af36d050b000c49bbcf52c", "built_at": "2026-09-26"}}, "tree": "17", "index": "index.html", "major": "17", "pages": 1143, "release": "17.11", "source_url": "https://ftp.postgresql.org/pub/source/v17.11/postgresql-17.11.tar.bz2", "svg_assets": 3, "source_mode": "en SGML built with pinned official archive", "source_sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "revision": "58419c9b0dd42cb34c8d53695bb025a7e582edf55ccd4c5bcb1c2c7c71a37487", "evidence_kind": "English manual and source declarations", "source_sha256": "dd27f2b3c59e73ed14aa3324901242bf69a032a6347805f274e6260322d42979"}, "sources": [{"url": "https://pg.center/docs/17/app-dropdb.html", "file": "app-dropdb.html", "label": "17.11 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "f2475e43dca472c1d7ed3c365027d24cd7871d1a649d418f3cf581305babb1db", "language": "en", "original_url": "/docs/17/app-dropdb.html"}, {"url": "https://pg.center/docs/17/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "3194fc72ddad8e2fcba55f8e007f83413cb352146cb65aaa9457a18d0314ee1b", "language": "en", "original_url": "/docs/17/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/17/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/17/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/17/libpq-connect.html#LIBPQ-CONNSTRING\" title=\"32.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/17/libpq-envars.html\" title=\"32.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a032.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/17/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/17/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/17/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/17/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/17/app-dropdb.html", "method": "same-major semantic node", "sha256": "7bf3d36c87059c58b44135ba13a06a316e4c0f511cfa6e02c7a4b1582b6bb36a", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/17/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/17/facts/0/label": "Documented executable", "/versions/17/facts/1/label": "Executable version", "/versions/17/facts/2/label": "Reference inventory", "/versions/17/facts/2/value": "Client applications", "/versions/17/facts/3/label": "Option definition groups", "/versions/17/tables/0/title": "Documented options", "/versions/17/tables/1/title": "Environment variables", "/versions/17/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/17/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/17/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/17/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/17/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/17/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/17/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/17/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/17/tables/0/rows/8/summary": "User name to connect as.", "/versions/17/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/17/tables/0/columns/0/label": "Option and arguments", "/versions/17/tables/0/columns/1/label": "Description", "/versions/17/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/17/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/17/tables/1/columns/0/label": "Variable", "/versions/17/tables/1/columns/1/label": "Meaning", "/versions/17/tables/1/rows/0/description": "Default connection parameters", "/versions/17/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "3bdeb5a36907949f3119bd36590c03ca14f4c416a1b9553725268d039e07f7a2"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "18": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "18.6"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/18/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/18/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/18/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/18/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/18/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/18/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/18/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/18/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/18/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/18/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/18/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/18/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/18/postgresql-18-A4.pdf", "bytes": 15865106, "pages": 3154, "sha256": "19512c405da53f9f7fcf0abba359223aa65f021be025bf3411381918f92e3190", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/18/postgresql-18-US.pdf", "bytes": 15748059, "pages": 3328, "sha256": "facbe6c229e598b872d3d98bef53308f46e06746006fa4590de9a7de9dd46319", "built_at": "2026-09-26"}}, "tree": "18", "index": "index.html", "major": "18", "pages": 1148, "release": "18.6", "source_url": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "svg_assets": 3, "source_mode": "en SGML built with pinned official archive", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "revision": "ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8", "evidence_kind": "English manual and source declarations", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "https://pg.center/docs/18/app-dropdb.html", "file": "app-dropdb.html", "label": "18.6 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "0a5a5822bf696b52df84777543e8f340c4a5028588d8e193b470471298b88513", "language": "en", "original_url": "/docs/18/app-dropdb.html"}, {"url": "https://pg.center/docs/18/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "68f726af77272fe73a827be2b7b5958d0f2239a6f8ed44264e9d42496bfa4fd0", "language": "en", "original_url": "/docs/18/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/18/libpq-connect.html#LIBPQ-CONNSTRING\" title=\"32.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/18/libpq-envars.html\" title=\"32.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a032.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/18/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/18/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/18/app-dropdb.html", "method": "same-major semantic node", "sha256": "58e357f486e875429383f54c472422906863ce9a53e1afc742d19b8a4e188324", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/18/facts/0/label": "Documented executable", "/versions/18/facts/1/label": "Executable version", "/versions/18/facts/2/label": "Reference inventory", "/versions/18/facts/2/value": "Client applications", "/versions/18/facts/3/label": "Option definition groups", "/versions/18/tables/0/title": "Documented options", "/versions/18/tables/1/title": "Environment variables", "/versions/18/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/18/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/18/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/18/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/18/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/18/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/18/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/18/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/18/tables/0/rows/8/summary": "User name to connect as.", "/versions/18/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/18/tables/0/columns/0/label": "Option and arguments", "/versions/18/tables/0/columns/1/label": "Description", "/versions/18/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/18/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/18/tables/1/columns/0/label": "Variable", "/versions/18/tables/1/columns/1/label": "Meaning", "/versions/18/tables/1/rows/0/description": "Default connection parameters", "/versions/18/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "46e7a8a1d1e0c31f9e73fcbc15dc8c12856c7098507203b69a828e21814bd7a4"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "19": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "19beta4"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/19/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/19/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/19/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/19/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/19/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/19/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/19/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/19/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/19/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/19/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/19/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/19/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/19/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v19beta4/postgresql-19beta4.tar.bz2", "label": "19beta4", "major": "19", "channel": "preview", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/19/postgresql-19-A4.pdf", "bytes": 16064841, "pages": 3052, "sha256": "4dd099e4125c591128fc5f3ebd02178dc24781f9e5ae629f96d67c4c8547427b", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/19/postgresql-19-US.pdf", "bytes": 15974616, "pages": 3225, "sha256": "61971fa857f0956d47341a0388fa6af9ae10acf691d4b2fc009007d384b0342b", "built_at": "2026-09-26"}}, "tree": "19", "index": "index.html", "major": "19", "pages": 1155, "release": "19beta4", "source_url": "https://ftp.postgresql.org/pub/source/v19beta4/postgresql-19beta4.tar.bz2", "svg_assets": 5, "source_mode": "en SGML built with pinned official archive", "source_sha256": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86"}, "revision": "1bbbbf4133d426f0e4304010688d2984c30fb67df0cc3a61b3e37eb3f6f37833", "evidence_kind": "English manual and source declarations", "source_sha256": "83157ee9c599d03b2f7a3d73ef3a56ec24e0e79cc2b3501a64d1364f56398c86"}, "sources": [{"url": "https://pg.center/docs/19/app-dropdb.html", "file": "app-dropdb.html", "label": "19beta4 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "689983cdac300540d1d413fb5007b663c585ec1cab2b4c85aa881e0f12dec6d5", "language": "en", "original_url": "/docs/19/app-dropdb.html"}, {"url": "https://pg.center/docs/19/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "c827f460db781b39da305303c88e73729a419cd2b2b9dedb126d8ad5cbf02c95", "language": "en", "original_url": "/docs/19/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/19/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/19/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/19/libpq-connect.html#LIBPQ-CONNSTRING\" title=\"32.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/19/libpq-envars.html\" title=\"32.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a032.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/19/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/19/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/19/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/19/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/19/app-dropdb.html", "method": "same-major semantic node", "sha256": "8f6f339471341e19a9a6df99f245db6f5e38dd8060858edde3f9b3f7566ea429", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/19/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/19/facts/0/label": "Documented executable", "/versions/19/facts/1/label": "Executable version", "/versions/19/facts/2/label": "Reference inventory", "/versions/19/facts/2/value": "Client applications", "/versions/19/facts/3/label": "Option definition groups", "/versions/19/tables/0/title": "Documented options", "/versions/19/tables/1/title": "Environment variables", "/versions/19/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/19/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/19/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/19/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/19/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/19/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/19/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/19/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/19/tables/0/rows/8/summary": "User name to connect as.", "/versions/19/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/19/tables/0/columns/0/label": "Option and arguments", "/versions/19/tables/0/columns/1/label": "Description", "/versions/19/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/19/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/19/tables/1/columns/0/label": "Variable", "/versions/19/tables/1/columns/1/label": "Meaning", "/versions/19/tables/1/rows/0/description": "Default connection parameters", "/versions/19/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "6429469275db8fb9b3ede9c2728f920f54fa9fb9f8bfbc1aa8cfb322a4619017"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "20": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "20devel"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/devel/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/devel/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/devel/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/devel/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/devel/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/devel/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/devel/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/devel/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/devel/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/devel/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/devel/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/devel/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/devel/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "label": "20devel", "major": "20", "channel": "devel", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/20/postgresql-20-A4.pdf", "bytes": 16030631, "pages": 3052, "sha256": "bd5d82c0ce38fc18f92a0447818a91a193a261776bca1c37564bf9a683e177d0", "built_at": "2026-09-28"}, "US": {"url": "/files/documentation/pdf/20/postgresql-20-US.pdf", "bytes": 15936613, "pages": 3223, "sha256": "d97d9e0db479a02f4234b175f50fcad70c3661619afc8d6df9b9437882e3c299", "built_at": "2026-09-28"}}, "tree": "0", "index": "index.html", "major": "20", "pages": 1156, "release": "20devel", "source_url": "https://ftp.postgresql.org/pub/snapshot/dev/postgresql-snapshot.tar.bz2", "svg_assets": 6, "source_mode": "en SGML built with pinned official archive", "source_sha256": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41", "source_snapshot_utc": "26-Sep-2026 20:22"}, "revision": "2eba5e0fd4c3bffb2803247b6cd537878e9d6ee5a6dfbe3c50ece8b421b80918", "evidence_kind": "English manual and source declarations", "source_sha256": "4d3346909b201ac1648232cf290462a7070c119326f56196f1f0253ed80fae41"}, "sources": [{"url": "https://pg.center/docs/devel/app-dropdb.html", "file": "app-dropdb.html", "label": "20devel English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "a67f5ac7cad1120c898b5b29d9632a5793fe49f9e08334274d5a4b055628429f", "language": "en", "original_url": "/docs/devel/app-dropdb.html"}, {"url": "https://pg.center/docs/devel/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "a6c7ba748fa1d9feac5bb7cde41d1d36a1f4c26d5963e07fb103d02918b2a8ca", "language": "en", "original_url": "/docs/devel/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/devel/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/devel/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/devel/libpq-connect.html#LIBPQ-CONNSTRING\" title=\"32.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/devel/libpq-envars.html\" title=\"32.14.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a032.14\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/devel/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/devel/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/devel/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/devel/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/devel/app-dropdb.html", "method": "same-major semantic node", "sha256": "f05f84a58233fc558b856b13bdb7f3cf6779f53237e420d0bc22132fa855cb18", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/summary": "dropdb \u2014 remove a PostgreSQL database", "/category": "Client applications", "/versions/20/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/20/facts/0/label": "Documented executable", "/versions/20/facts/1/label": "Executable version", "/versions/20/facts/2/label": "Reference inventory", "/versions/20/facts/2/value": "Client applications", "/versions/20/facts/3/label": "Option definition groups", "/versions/20/tables/0/title": "Documented options", "/versions/20/tables/1/title": "Environment variables", "/versions/20/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/20/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/20/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/20/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/20/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/20/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/20/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/20/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/20/tables/0/rows/8/summary": "User name to connect as.", "/versions/20/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/20/tables/0/columns/0/label": "Option and arguments", "/versions/20/tables/0/columns/1/label": "Description", "/versions/20/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/20/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/20/tables/1/columns/0/label": "Variable", "/versions/20/tables/1/columns/1/label": "Meaning", "/versions/20/tables/1/rows/0/description": "Default connection parameters", "/versions/20/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "611e7fdc39cfed05b424473e60138053980c04006c870c1139f686f1f1856681"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}}}, "snapshot": {"facts": [{"label": "\u624b\u518c\u4e2d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f", "value": "dropdb"}, {"label": "\u7a0b\u5e8f\u7248\u672c", "value": "18.6"}, {"label": "\u53c2\u8003\u6e05\u5355", "value": "\u5ba2\u6237\u7aef\u7a0b\u5e8f"}, {"label": "\u9009\u9879\u5b9a\u4e49\u7ec4", "value": "12"}], "tables": [{"key": "options", "rows": [{"summary": "\u56de\u663e dropdb \u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-e --echo"}}, {"summary": "\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1 DROP DATABASE \u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-f --force"}}, {"summary": "\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-i --interactive"}}, {"summary": "\u6253\u5370 dropdb \u7248\u672c\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-V --version"}}, {"summary": "\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "--if-exists"}}, {"summary": "\u663e\u793a\u6709\u5173 dropdb \u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-? --help"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-h host --host= host"}}, {"summary": "\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-p port --port= port"}}, {"summary": "\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-U username --username= username"}}, {"summary": "\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 .pgpass \u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-w --no-password"}}, {"summary": "\u5f3a\u5236 dropdb \u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "-W --password"}}, {"summary": "\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 postgres \u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528 template1 \u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a \u8fde\u63a5\u5b57\u7b26\u4e32 \u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002", "signature": {"url": "/docs/18/app-dropdb.html", "text": "--maintenance-db= dbname"}}], "title": "\u624b\u518c\u4e2d\u7684\u9009\u9879", "columns": [{"key": "signature", "label": "\u9009\u9879\u4e0e\u53c2\u6570"}, {"key": "summary", "label": "\u8bf4\u660e"}]}, {"key": "environment", "rows": [{"name": "PGHOST PGPORT PGUSER", "description": "\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570"}, {"name": "PG_COLOR", "description": "\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a always \u3001 auto \u548c never \u3002"}], "title": "\u73af\u5883\u53d8\u91cf", "columns": [{"key": "name", "label": "\u53d8\u91cf"}, {"key": "description", "label": "\u542b\u4e49"}]}], "options": [{"names": ["-e", "--echo"], "summary": "Echo the commands that dropdb generates and sends to the server.", "signature": "-e --echo", "source_url": "/docs/18/app-dropdb.html", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "signature": "-f --force", "source_url": "/docs/18/app-dropdb.html", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "summary": "Issues a verification prompt before doing anything destructive.", "signature": "-i --interactive", "source_url": "/docs/18/app-dropdb.html", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "summary": "Print the dropdb version and exit.", "signature": "-V --version", "source_url": "/docs/18/app-dropdb.html", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "signature": "--if-exists", "source_url": "/docs/18/app-dropdb.html", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "summary": "Show help about dropdb command line arguments, and exit.", "signature": "-? --help", "source_url": "/docs/18/app-dropdb.html", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "signature": "-h host --host= host", "source_url": "/docs/18/app-dropdb.html", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "signature": "-p port --port= port", "source_url": "/docs/18/app-dropdb.html", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "summary": "User name to connect as.", "signature": "-U username --username= username", "source_url": "/docs/18/app-dropdb.html", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "signature": "-w --no-password", "source_url": "/docs/18/app-dropdb.html", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "summary": "Force dropdb to prompt for a password before connecting to a database.", "signature": "-W --password", "source_url": "/docs/18/app-dropdb.html", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "signature": "--maintenance-db= dbname", "source_url": "/docs/18/app-dropdb.html", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "related": [], "release": {"ref": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "label": "18.6", "major": "18", "channel": "stable", "manifest": {"pdf": {"A4": {"url": "/files/documentation/pdf/18/postgresql-18-A4.pdf", "bytes": 15865106, "pages": 3154, "sha256": "19512c405da53f9f7fcf0abba359223aa65f021be025bf3411381918f92e3190", "built_at": "2026-09-26"}, "US": {"url": "/files/documentation/pdf/18/postgresql-18-US.pdf", "bytes": 15748059, "pages": 3328, "sha256": "facbe6c229e598b872d3d98bef53308f46e06746006fa4590de9a7de9dd46319", "built_at": "2026-09-26"}}, "tree": "18", "index": "index.html", "major": "18", "pages": 1148, "release": "18.6", "source_url": "https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2", "svg_assets": 3, "source_mode": "en SGML built with pinned official archive", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "revision": "ee8d1a3612338fd9adf250730cb640fcc5233b5491337cc00a316a44e3a0b9f8", "evidence_kind": "English manual and source declarations", "source_sha256": "555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"}, "sources": [{"url": "https://pg.center/docs/18/app-dropdb.html", "file": "app-dropdb.html", "label": "18.6 English manual \u00b7 app-dropdb.html", "anchor": "", "sha256": "0a5a5822bf696b52df84777543e8f340c4a5028588d8e193b470471298b88513", "language": "en", "original_url": "/docs/18/app-dropdb.html"}, {"url": "https://pg.center/docs/18/reference-client.html", "file": "reference-client.html", "label": "Client applications inventory", "anchor": "", "sha256": "68f726af77272fe73a827be2b7b5958d0f2239a6f8ed44264e9d42496bfa4fd0", "language": "en", "original_url": "/docs/18/reference-client.html"}], "sections": [], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "signature": "dropdb [ connection-option ...] [ option ...] dbname", "description": ["dropdb \u2014 \u79fb\u9664\u4e00\u4e2a PostgreSQL \u6570\u636e\u5e93"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}], "manual_html": "<div><div class=\"refentry\" id=\"APP-DROPDB\">\n<div class=\"titlepage\"></div>\n<div class=\"refnamediv\">\n<h2><span class=\"refentrytitle\"><span class=\"application\">dropdb</span></span></h2>\n<p lang=\"zh\">dropdb \u2014 \u79fb\u9664\u4e00\u4e2a<span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93</p>\n</div>\n<div class=\"refsynopsisdiv\">\n<h2 lang=\"zh\">\u5927\u7eb2</h2>\n<div class=\"cmdsynopsis\">\n<p id=\"id-1.9.4.6.4.1\"><code class=\"command\">dropdb</code> [<em class=\"replaceable\"><code>connection-option</code></em>...] [<em class=\"replaceable\"><code>option</code></em>...] <em class=\"replaceable\"><code>dbname</code></em></p>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.5\">\n<h2 lang=\"zh\">\u8bf4\u660e</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u5220\u9664\u4e00\u4e2a\u73b0\u6709\u7684 <span class=\"productname\">PostgreSQL</span>\u6570\u636e\u5e93\u3002\u6267\u884c\u6b64\u547d\u4ee4\u7684\u7528\u6237\u5fc5\u987b\u662f\u6570\u636e\u5e93\u8d85\u7ea7\u7528\u6237\u6216\u8be5\u6570\u636e\u5e93\u7684\u62e5\u6709\u8005\u3002</p>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u662f<acronym class=\"acronym\">SQL</acronym>\u547d\u4ee4 <a class=\"link\" href=\"/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><code class=\"command\">DROP DATABASE</code></a>\u7684\u4e00\u4e2a\u5305\u88c5\u5668\u3002\u901a\u8fc7\u6b64\u5de5\u5177\u5220\u9664\u6570\u636e\u5e93\u4e0e\u901a\u8fc7\u5176\u4ed6\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u65b9\u6cd5\u5220\u9664\u6570\u636e\u5e93\uff0c\u5728\u6548\u679c\u4e0a\u6ca1\u6709\u533a\u522b\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.6\">\n<h2 lang=\"zh\">\u9009\u9879</h2>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u63a5\u53d7\u4e0b\u5217\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><em class=\"replaceable\"><code>dbname</code></em></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8981\u79fb\u9664\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-e</code><br/></span><span class=\"term\"><code class=\"option\">--echo</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u56de\u663e<span class=\"application\">dropdb</span>\u751f\u6210\u5e76\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u7684\u547d\u4ee4\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-f</code><br/></span><span class=\"term\"><code class=\"option\">--force</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u4e4b\u524d\uff0c\u5c1d\u8bd5\u7ec8\u6b62\u6240\u6709\u5230\u8be5\u6570\u636e\u5e93\u7684\u73b0\u6709\u8fde\u63a5\u3002\u5173\u4e8e\u6b64\u9009\u9879\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u89c1<a class=\"xref\" href=\"/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-i</code><br/></span><span class=\"term\"><code class=\"option\">--interactive</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5728\u6267\u884c\u4efb\u4f55\u7834\u574f\u6027\u64cd\u4f5c\u4e4b\u524d\u53d1\u51fa\u786e\u8ba4\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-V</code><br/></span><span class=\"term\"><code class=\"option\">--version</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6253\u5370<span class=\"application\">dropdb</span>\u7248\u672c\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--if-exists</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff0c\u5219\u4e0d\u8981\u629b\u51fa\u9519\u8bef\u3002\u8fd9\u79cd\u60c5\u51b5\u4e0b\u4f1a\u53d1\u51fa\u4e00\u4e2a\u63d0\u793a\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-?</code><br/></span><span class=\"term\"><code class=\"option\">--help</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u663e\u793a\u6709\u5173<span class=\"application\">dropdb</span>\u547d\u4ee4\u884c\u53c2\u6570\u7684\u5e2e\u52a9\u5e76\u9000\u51fa\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\"><span class=\"application\">dropdb</span>\u4e5f\u63a5\u53d7\u4e0b\u5217\u7528\u4e8e\u8fde\u63a5\u53c2\u6570\u7684\u547d\u4ee4\u884c\u53c2\u6570\uff1a</p>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"option\">-h <em class=\"replaceable\"><code>host</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--host=<em class=\"replaceable\"><code>host</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u6240\u5728\u673a\u5668\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u8be5\u503c\u4ee5\u659c\u6760\u5f00\u5934\uff0c\u5219\u5b83\u5c06\u88ab\u7528\u4f5c Unix \u57df\u5957\u63a5\u5b57\u7684\u76ee\u5f55\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-p <em class=\"replaceable\"><code>port</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--port=<em class=\"replaceable\"><code>port</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u670d\u52a1\u5668\u76d1\u542c\u8fde\u63a5\u6240\u7528\u7684 TCP \u7aef\u53e3\u6216\u672c\u5730 Unix \u57df\u5957\u63a5\u5b57\u6587\u4ef6\u6269\u5c55\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-U <em class=\"replaceable\"><code>username</code></em></code><br/></span><span class=\"term\"><code class=\"option\">--username=<em class=\"replaceable\"><code>username</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u7528\u4e8e\u8fde\u63a5\u7684\u7528\u6237\u540d\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-w</code><br/></span><span class=\"term\"><code class=\"option\">--no-password</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u4ece\u4e0d\u53d1\u51fa\u5bc6\u7801\u63d0\u793a\u3002\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c\u800c\u5bc6\u7801\u53c8\u65e0\u6cd5\u901a\u8fc7\u8bf8\u5982 <code class=\"filename\">.pgpass</code>\u6587\u4ef6\u7b49\u5176\u4ed6\u65b9\u5f0f\u83b7\u5f97\uff0c\u5219\u8fde\u63a5\u5c1d\u8bd5\u5c06\u5931\u8d25\u3002\u8be5\u9009\u9879\u9002\u5408\u6ca1\u6709\u7528\u6237\u5728\u573a\u8f93\u5165\u5bc6\u7801\u7684\u6279\u5904\u7406\u4f5c\u4e1a\u548c\u811a\u672c\u3002</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">-W</code><br/></span><span class=\"term\"><code class=\"option\">--password</code></span></dt>\n<dd>\n<p lang=\"zh\">\u5f3a\u5236<span class=\"application\">dropdb</span>\u5728\u8fde\u63a5\u6570\u636e\u5e93\u4e4b\u524d\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002</p>\n<p lang=\"zh\">\u8fd9\u4e2a\u9009\u9879\u5e76\u975e\u5fc5\u4e0d\u53ef\u5c11\uff0c\u56e0\u4e3a\u5982\u679c\u670d\u52a1\u5668\u8981\u6c42\u5bc6\u7801\u8ba4\u8bc1\uff0c<span class=\"application\">dropdb</span>\u4f1a\u81ea\u52a8\u63d0\u793a\u8f93\u5165\u5bc6\u7801\u3002\u4e0d\u8fc7\uff0c<span class=\"application\">dropdb</span>\u4f1a\u6d6a\u8d39\u4e00\u6b21\u8fde\u63a5\u5c1d\u8bd5\uff0c\u624d\u77e5\u9053\u670d\u52a1\u5668\u9700\u8981\u5bc6\u7801\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u6b21\u989d\u5916\u7684\u8fde\u63a5\u5c1d\u8bd5\uff0c\u63d0\u524d\u6307\u5b9a<code class=\"option\">-W</code>\u662f\u503c\u5f97\u7684\u3002</p>\n</dd>\n<dt><span class=\"term\"><code class=\"option\">--maintenance-db=<em class=\"replaceable\"><code>dbname</code></em></code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u5728\u5220\u9664\u76ee\u6807\u6570\u636e\u5e93\u65f6\u8981\u8fde\u63a5\u5230\u7684\u6570\u636e\u5e93\u540d\u79f0\u3002\u5982\u679c\u672a\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528 <code class=\"literal\">postgres</code>\u6570\u636e\u5e93\uff1b\u82e5\u8be5\u6570\u636e\u5e93\u4e0d\u5b58\u5728\uff08\u6216\u8005\u5b83\u6b63\u662f\u8981\u88ab\u5220\u9664\u7684\u6570\u636e\u5e93\uff09\uff0c\u5219\u6539\u7528<code class=\"literal\">template1</code>\u3002\u8fd9\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a<a class=\"link\" href=\"/docs/18/libpq-connect.html#LIBPQ-CONNSTRING\" title=\"32.1.1.\u00a0\u8fde\u63a5\u5b57\u7b26\u4e32\">\u8fde\u63a5\u5b57\u7b26\u4e32</a>\u3002\u5982\u679c\u662f\u8fd9\u79cd\u60c5\u51b5\uff0c\u5176\u4e2d\u7684\u8fde\u63a5\u5b57\u7b26\u4e32\u53c2\u6570\u5c06\u8986\u76d6\u4efb\u4f55\u51b2\u7a81\u7684\u547d\u4ee4\u884c\u9009\u9879\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.7\">\n<h2 lang=\"zh\">\u73af\u5883</h2>\n<div class=\"variablelist\">\n<dl class=\"variablelist\">\n<dt><span class=\"term\"><code class=\"envar\">PGHOST</code><br/></span><span class=\"term\"><code class=\"envar\">PGPORT</code><br/></span><span class=\"term\"><code class=\"envar\">PGUSER</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u9ed8\u8ba4\u8fde\u63a5\u53c2\u6570</p>\n</p>\n</dd>\n<dt><span class=\"term\"><code class=\"envar\">PG_COLOR</code></span></dt>\n<dd>\n<p lang=\"zh\">\n<p>\u6307\u5b9a\u8bca\u65ad\u6d88\u606f\u662f\u5426\u4f7f\u7528\u989c\u8272\u3002\u53ef\u9009\u503c\u4e3a <code class=\"literal\">always</code>\u3001<code class=\"literal\">auto</code>\u548c <code class=\"literal\">never</code>\u3002</p>\n</p>\n</dd>\n</dl>\n</div>\n<p lang=\"zh\">\u4e0e\u5927\u591a\u6570\u5176\u4ed6 <span class=\"productname\">PostgreSQL</span> \u5de5\u5177\u4e00\u6837\uff0c\u6b64\u5de5\u5177\u4e5f\u4f7f\u7528 <span class=\"application\">libpq</span> \u652f\u6301\u7684\u73af\u5883\u53d8\u91cf\uff08\u89c1<a class=\"xref\" href=\"/docs/18/libpq-envars.html\" title=\"32.15.\u00a0\u73af\u5883\u53d8\u91cf\">\u7b2c\u00a032.15\u00a0\u8282</a>\uff09\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.8\">\n<h2 lang=\"zh\">\u8bca\u65ad</h2>\n<p lang=\"zh\">\u5982\u679c\u9047\u5230\u95ee\u9898\uff0c\u8bf7\u53c2\u89c1<a class=\"xref\" href=\"/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a>\u548c<a class=\"xref\" href=\"/docs/18/app-psql.html\" title=\"psql\"><span class=\"refentrytitle\"><span class=\"application\">psql</span></span></a>\u4e2d\u5173\u4e8e\u6f5c\u5728\u95ee\u9898\u548c\u9519\u8bef\u6d88\u606f\u7684\u8ba8\u8bba\u3002\u6570\u636e\u5e93\u670d\u52a1\u5668\u5fc5\u987b\u5728\u76ee\u6807\u4e3b\u673a\u4e0a\u8fd0\u884c\u3002\u6b64\u5916\uff0c<span class=\"application\">libpq</span>\u524d\u7aef\u5e93\u6240\u4f7f\u7528\u7684\u4efb\u4f55\u9ed8\u8ba4\u8fde\u63a5\u8bbe\u7f6e\u548c\u73af\u5883\u53d8\u91cf\u90fd\u4f1a\u751f\u6548\u3002</p>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.9\">\n<h2 lang=\"zh\">\u793a\u4f8b</h2>\n<p lang=\"zh\">\u8981\u5728\u9ed8\u8ba4\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e0a\u5220\u9664\u6570\u636e\u5e93<code class=\"literal\">demo</code>\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb demo</code></strong>\n</pre>\n<p lang=\"zh\">\u4f7f\u7528\u4e3b\u673a eden \u4e0a\u7aef\u53e3\u4e3a 5000 \u7684\u670d\u52a1\u5668\u5220\u9664\u6570\u636e\u5e93 demo\uff0c\u8981\u6c42\u786e\u8ba4\u5e76\u67e5\u770b\u5e95\u5c42\u547d\u4ee4\uff1a</p>\n<pre class=\"screen\"><code class=\"prompt\">$ </code><strong class=\"userinput\"><code>dropdb -p 5000 -h eden -i -e demo</code></strong>\n<code class=\"computeroutput\">Database \"demo\" will be permanently deleted.\nAre you sure? (y/n) </code><strong class=\"userinput\"><code>y</code></strong>\n<code class=\"computeroutput\">DROP DATABASE demo;</code>\n</pre>\n</div>\n<div class=\"refsect1\" id=\"id-1.9.4.6.10\">\n<h2 lang=\"zh\">\u53e6\u89c1</h2><span class=\"simplelist\"><a class=\"xref\" href=\"https://pg.center/docs/18/app-createdb.html\" title=\"createdb\"><span class=\"refentrytitle\"><span class=\"application\">createdb</span></span></a>, <a class=\"xref\" href=\"https://pg.center/docs/18/sql-dropdatabase.html\" title=\"DROP DATABASE\"><span class=\"refentrytitle\">DROP DATABASE</span></a></span>\n</div>\n</div></div>", "manual_path": "app-dropdb.html", "localization": {"status": "complete", "sources": [{"url": "/docs/18/app-dropdb.html", "method": "same-major semantic node", "sha256": "58e357f486e875429383f54c472422906863ce9a53e1afc742d19b8a4e188324", "language": "zh", "matched_nodes": ["#APP-DROPDB/div[2]/p[1]", "#APP-DROPDB/div[3]/h2[0]", "#APP-DROPDB/div[4]/p[1]", "#APP-DROPDB/div[4]/p[2]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[13]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[2]/dl[0]/dd[9]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[11]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[1]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[3]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[5]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[7]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[0]", "#APP-DROPDB/div[5]/div[4]/dl[0]/dd[9]/p[1]", "#APP-DROPDB/div[5]/p[1]", "#APP-DROPDB/div[5]/p[3]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[1]", "#APP-DROPDB/div[6]/div[1]/dl[0]/dd[3]", "#APP-DROPDB/div[6]/h2[0]", "#APP-DROPDB/div[6]/p[2]", "#APP-DROPDB/div[7]/h2[0]", "#APP-DROPDB/div[7]/p[1]", "#APP-DROPDB/div[8]/h2[0]", "#APP-DROPDB/div[8]/p[1]", "#APP-DROPDB/div[9]/h2[0]"]}], "language": "zh", "original_text": {"/versions/18/description/0": "dropdb \u2014 remove a PostgreSQL database", "/versions/18/facts/0/label": "Documented executable", "/versions/18/facts/1/label": "Executable version", "/versions/18/facts/2/label": "Reference inventory", "/versions/18/facts/2/value": "Client applications", "/versions/18/facts/3/label": "Option definition groups", "/versions/18/tables/0/title": "Documented options", "/versions/18/tables/1/title": "Environment variables", "/versions/18/tables/0/rows/0/summary": "Echo the commands that dropdb generates and sends to the server.", "/versions/18/tables/0/rows/1/summary": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.", "/versions/18/tables/0/rows/2/summary": "Issues a verification prompt before doing anything destructive.", "/versions/18/tables/0/rows/3/summary": "Print the dropdb version and exit.", "/versions/18/tables/0/rows/4/summary": "Do not throw an error if the database does not exist. A notice is issued in this case.", "/versions/18/tables/0/rows/5/summary": "Show help about dropdb command line arguments, and exit.", "/versions/18/tables/0/rows/6/summary": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket.", "/versions/18/tables/0/rows/7/summary": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections.", "/versions/18/tables/0/rows/8/summary": "User name to connect as.", "/versions/18/tables/0/rows/9/summary": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password.", "/versions/18/tables/0/columns/0/label": "Option and arguments", "/versions/18/tables/0/columns/1/label": "Description", "/versions/18/tables/0/rows/10/summary": "Force dropdb to prompt for a password before connecting to a database.", "/versions/18/tables/0/rows/11/summary": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options.", "/versions/18/tables/1/columns/0/label": "Variable", "/versions/18/tables/1/columns/1/label": "Meaning", "/versions/18/tables/1/rows/0/description": "Default connection parameters", "/versions/18/tables/1/rows/1/description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}, "fallback_fields": [], "source_language": "en", "original_snapshot_sha256": "46e7a8a1d1e0c31f9e73fcbc15dc8c12856c7098507203b69a828e21814bd7a4"}, "comparison_data": {"options": [{"names": ["-e", "--echo"], "signature": "-e --echo", "description": "Echo the commands that dropdb generates and sends to the server."}, {"names": ["-f", "--force"], "signature": "-f --force", "description": "Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option."}, {"names": ["-i", "--interactive"], "signature": "-i --interactive", "description": "Issues a verification prompt before doing anything destructive."}, {"names": ["-V", "--version"], "signature": "-V --version", "description": "Print the dropdb version and exit."}, {"names": ["--if-exists"], "signature": "--if-exists", "description": "Do not throw an error if the database does not exist. A notice is issued in this case."}, {"names": ["-?", "--help"], "signature": "-? --help", "description": "Show help about dropdb command line arguments, and exit."}, {"names": ["-h host", "--host= host"], "signature": "-h host --host= host", "description": "Specifies the host name of the machine on which the server is running. If the value begins with a slash, it is used as the directory for the Unix domain socket."}, {"names": ["-p port", "--port= port"], "signature": "-p port --port= port", "description": "Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections."}, {"names": ["-U username", "--username= username"], "signature": "-U username --username= username", "description": "User name to connect as."}, {"names": ["-w", "--no-password"], "signature": "-w --no-password", "description": "Never issue a password prompt. If the server requires password authentication and a password is not available by other means such as a .pgpass file, the connection attempt will fail. This option can be useful in batch jobs and scripts where no user is present to enter a password."}, {"names": ["-W", "--password"], "signature": "-W --password", "description": "Force dropdb to prompt for a password before connecting to a database. This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt."}, {"names": ["--maintenance-db= dbname"], "signature": "--maintenance-db= dbname", "description": "Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. This can be a connection string . If so, connection string parameters will override any conflicting command line options."}], "synopsis": ["dropdb [ connection-option ...] [ option ...] dbname"], "environment": [{"name": "PGHOST PGPORT PGUSER", "description": "Default connection parameters"}, {"name": "PG_COLOR", "description": "Specifies whether to use color in diagnostic messages. Possible values are always , auto and never ."}]}, "comparison_hash": "8368b5388b640fa11b27e0ba4ea78bf8abf0592bc078a3e0c7726290e0c29225", "manual_language": "zh"}, "comparison": {"left": "12", "right": "13", "status": "changed", "diff": "--- PostgreSQL 12\n+++ PostgreSQL 13\n@@ -17,6 +17,14 @@\n         \"--echo\"\n       ],\n       \"signature\": \"-e --echo\"\n+    },\n+    {\n+      \"description\": \"Attempt to terminate all existing connections to the target database before dropping it. See DROP DATABASE for more information on this option.\",\n+      \"names\": [\n+        \"-f\",\n+        \"--force\"\n+      ],\n+      \"signature\": \"-f --force\"\n     },\n     {\n       \"description\": \"Issues a verification prompt before doing anything destructive.\","}}