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pgsql/doc/src/sgml/html/sql-dropdatabase.html
44 строки
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AoAnima
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13 июл 2026, 17:47
13 июл 2026, 17:47
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<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>DROP DATABASE</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-dropconversion.html" title="DROP CONVERSION" /><link rel="next" href="sql-dropdomain.html" title="DROP DOMAIN" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">DROP DATABASE</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-dropconversion.html" title="DROP CONVERSION">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 18.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-dropdomain.html" title="DROP DOMAIN">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-DROPDATABASE"><div class="titlepage"></div><a id="id-1.9.3.108.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">DROP DATABASE</span></h2><p>DROP DATABASE — remove a database</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis"> DROP DATABASE [ IF EXISTS ] <em class="replaceable"><code>name</code></em> [ [ WITH ] ( <em class="replaceable"><code>option</code></em> [, ...] ) ] <span class="phrase">where <em class="replaceable"><code>option</code></em> can be:</span> FORCE </pre></div><div class="refsect1" id="id-1.9.3.108.5"><h2>Description</h2><p> <code class="command">DROP DATABASE</code> drops a database. It removes the catalog entries for the database and deletes the directory containing the data. It can only be executed by the database owner. It cannot be executed while you are connected to the target database. (Connect to <code class="literal">postgres</code> or any other database to issue this command.) Also, if anyone else is connected to the target database, this command will fail unless you use the <code class="literal">FORCE</code> option described below. </p><p> <code class="command">DROP DATABASE</code> cannot be undone. Use it with care! </p></div><div class="refsect1" id="id-1.9.3.108.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">IF EXISTS</code></span></dt><dd><p> Do not throw an error if the database does not exist. A notice is issued in this case. </p></dd><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p> The name of the database to remove. </p></dd><dt><span class="term"><code class="literal">FORCE</code></span></dt><dd><p> Attempt to terminate all existing connections to the target database. It doesn't terminate if prepared transactions, active logical replication slots or subscriptions are present in the target database. </p><p> This terminates background worker connections and connections that the current user has permission to terminate with <code class="function">pg_terminate_backend</code>, described in <a class="xref" href="functions-admin.html#FUNCTIONS-ADMIN-SIGNAL" title="9.28.2. Server Signaling Functions">Section 9.28.2</a>. If connections would remain, this command will fail. </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.108.7"><h2>Notes</h2><p> <code class="command">DROP DATABASE</code> cannot be executed inside a transaction block. </p><p> This command cannot be executed while connected to the target database. Thus, it might be more convenient to use the program <a class="xref" href="app-dropdb.html" title="dropdb"><span class="refentrytitle"><span class="application">dropdb</span></span></a> instead, which is a wrapper around this command. </p></div><div class="refsect1" id="id-1.9.3.108.8"><h2>Compatibility</h2><p> There is no <code class="command">DROP DATABASE</code> statement in the SQL standard. </p></div><div class="refsect1" id="id-1.9.3.108.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createdatabase.html" title="CREATE DATABASE"><span class="refentrytitle">CREATE DATABASE</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-dropconversion.html" title="DROP CONVERSION">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-dropdomain.html" title="DROP DOMAIN">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DROP CONVERSION </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 18.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DROP DOMAIN</td></tr></table></div></body></html>