127 lines
3.3 KiB
Plaintext
127 lines
3.3 KiB
Plaintext
<!--
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doc/src/sgml/ref/drop_database.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-dropdatabase">
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<indexterm zone="sql-dropdatabase">
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<primary>DROP DATABASE</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>DROP DATABASE</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>DROP DATABASE</refname>
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<refpurpose>remove a database</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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DROP DATABASE [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ [ WITH ] ( <replaceable class="parameter">option</replaceable> [, ...] ) ]
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<phrase>where <replaceable class="parameter">option</replaceable> can be:</phrase>
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FORCE
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>DROP DATABASE</command> drops a database. It removes the
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catalog entries for the database and deletes the directory
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containing the data. It can only be executed by the database owner.
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It cannot be executed while you are connected to the target database.
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(Connect to <literal>postgres</literal> or any other database to issue this
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command.)
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Also, if anyone else is connected to the target database, this command will
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fail unless you use the <literal>FORCE</literal> option described below.
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</para>
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<para>
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<command>DROP DATABASE</command> cannot be undone. Use it with care!
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><literal>IF EXISTS</literal></term>
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<listitem>
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<para>
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Do not throw an error if the database does not exist. A notice is issued
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in this case.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">name</replaceable></term>
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<listitem>
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<para>
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The name of the database to remove.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>FORCE</literal></term>
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<listitem>
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<para>
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Attempt to terminate all existing connections to the target database.
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It doesn't terminate if prepared transactions, active logical replication
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slots or subscriptions are present in the target database.
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</para>
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<para>
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This will fail if the current user has no permissions to terminate other
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connections. Required permissions are the same as with
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<literal>pg_terminate_backend</literal>, described in
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<xref linkend="functions-admin-signal"/>. This will also fail if we
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are not able to terminate connections.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Notes</title>
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<para>
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<command>DROP DATABASE</command> cannot be executed inside a transaction
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block.
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</para>
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<para>
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This command cannot be executed while connected to the target
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database. Thus, it might be more convenient to use the program
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<xref linkend="app-dropdb"/> instead,
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which is a wrapper around this command.
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</para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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There is no <command>DROP DATABASE</command> statement in the SQL standard.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-createdatabase"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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