Adding upstream version 13.4.upstream/13.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 126 insertions, 0 deletions

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+<!--
+doc/src/sgml/ref/drop_database.sgml
+PostgreSQL documentation
+-->
+
+<refentry id="sql-dropdatabase">
+ <indexterm zone="sql-dropdatabase">
+  <primary>DROP DATABASE</primary>
+ </indexterm>
+
+ <refmeta>
+  <refentrytitle>DROP DATABASE</refentrytitle>
+  <manvolnum>7</manvolnum>
+  <refmiscinfo>SQL - Language Statements</refmiscinfo>
+ </refmeta>
+
+ <refnamediv>
+  <refname>DROP DATABASE</refname>
+  <refpurpose>remove a database</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+<synopsis>
+DROP DATABASE [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ [ WITH ] ( <replaceable class="parameter">option</replaceable> [, ...] ) ]
+
+<phrase>where <replaceable class="parameter">option</replaceable> can be:</phrase>
+
+    FORCE
+</synopsis>
+ </refsynopsisdiv>
+
+ <refsect1>
+  <title>Description</title>
+
+  <para>
+   <command>DROP DATABASE</command> 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 <literal>postgres</literal> 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 <literal>FORCE</literal> option described below.
+  </para>
+
+  <para>
+   <command>DROP DATABASE</command> cannot be undone.  Use it with care!
+  </para>
+ </refsect1>
+
+ <refsect1>
+  <title>Parameters</title>
+
+  <variablelist>
+   <varlistentry>
+    <term><literal>IF EXISTS</literal></term>
+    <listitem>
+     <para>
+      Do not throw an error if the database does not exist. A notice is issued
+      in this case.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><replaceable class="parameter">name</replaceable></term>
+    <listitem>
+     <para>
+      The name of the database to remove.
+     </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term><literal>FORCE</literal></term>
+    <listitem>
+     <para>
+      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.
+     </para>
+     <para>
+      This will fail if the current user has no permissions to terminate other
+      connections. Required permissions are the same as with
+      <literal>pg_terminate_backend</literal>, described in
+      <xref linkend="functions-admin-signal"/>.  This will also fail if we
+      are not able to terminate connections.
+     </para>
+    </listitem>
+   </varlistentry>
+
+  </variablelist>
+ </refsect1>
+
+ <refsect1>
+  <title>Notes</title>
+
+   <para>
+    <command>DROP DATABASE</command> cannot be executed inside a transaction
+    block.
+   </para>
+
+  <para>
+   This command cannot be executed while connected to the target
+   database. Thus, it might be more convenient to use the program
+   <xref linkend="app-dropdb"/> instead,
+   which is a wrapper around this command.
+  </para>
+ </refsect1>
+
+ <refsect1>
+  <title>Compatibility</title>
+
+  <para>
+   There is no <command>DROP DATABASE</command> statement in the SQL standard.
+  </para>
+ </refsect1>
+
+ <refsect1>
+  <title>See Also</title>
+
+  <simplelist type="inline">
+   <member><xref linkend="sql-createdatabase"/></member>
+  </simplelist>
+ </refsect1>
+</refentry>