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<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_database.sgml,v 1.15 2002/04/21 19:02:39 thomas Exp $
PostgreSQL documentation
-->
<refentry id="SQL-DROPDATABASE">
<refmeta>
<refentrytitle id="SQL-DROPDATABASE-TITLE">DROP DATABASE</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>
DROP DATABASE
</refname>
<refpurpose>
remove a database
</refpurpose>
</refnamediv>
<refsynopsisdiv>
<refsynopsisdivinfo>
<date>1999-12-11</date>
</refsynopsisdivinfo>
<synopsis>
DROP DATABASE <replaceable class="PARAMETER">name</replaceable>
</synopsis>
<refsect2 id="R2-SQL-DROPDATABASE-1">
<refsect2info>
<date>1999-12-11</date>
</refsect2info>
<title>
Inputs
</title>
<para>
<variablelist>
<varlistentry>
<term><replaceable class="PARAMETER">name</replaceable></term>
<listitem>
<para>
The name of an existing database to remove.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
<refsect2 id="R2-SQL-DROPDATABASE-2">
<refsect2info>
<date>1999-12-11</date>
</refsect2info>
<title>
Outputs
</title>
<para>
<variablelist>
<varlistentry>
<term><computeroutput>DROP DATABASE</computeroutput></term>
<listitem>
<para>
This message is returned if the command is successful.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>DROP DATABASE: cannot be executed on the currently open database</computeroutput></term>
<listitem>
<para>
You cannot be connected to the database you are about to remove.
Instead, connect to <literal>template1</literal> or any other
database and run this command again.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>DROP DATABASE: may not be called in a transaction block</computeroutput></term>
<listitem>
<para>
You must finish the transaction in progress before you can call this command.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect2>
</refsynopsisdiv>
<refsect1 id="R1-SQL-DROPDATABASE-1">
<refsect1info>
<date>1999-12-11</date>
</refsect1info>
<title>
Description
</title>
<para>
<command>DROP DATABASE</command> removes the catalog entries for an existing
database and deletes the directory containing the data.
It can only be executed by the database owner (usually the user that created
it).
</para>
<para>
<command>DROP DATABASE</command> cannot be undone. Use it with care!
</para>
<refsect2 id="R2-SQL-DROPDATABASE-3">
<refsect2info>
<date>1999-12-11</date>
</refsect2info>
<title>
Notes
</title>
<para>
This command cannot be executed while connected to the target
database. Thus, it might be more convenient to use the shell
script <xref linkend="app-dropdb" endterm="app-dropdb-title">,
which is a wrapper around this command, instead.
</para>
<para>
Refer to
<xref linkend="sql-createdatabase" endterm="sql-createdatabase-title">
for information on how to create a database.
</para>
</refsect2>
</refsect1>
<refsect1 id="R1-SQL-DROPDATABASE-3">
<title>
Compatibility
</title>
<refsect2 id="R2-SQL-DROPDATABASE-4">
<refsect2info>
<date>1998-04-15</date>
</refsect2info>
<title>
SQL92
</title>
<para>
<command>DROP DATABASE</command> statement is a
<productname>PostgreSQL</productname> language extension;
there is no such command in <acronym>SQL92</acronym>.
</para>
</refsect2>
</refsect1>
</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:nil
sgml-shorttag:t
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sgml-always-quote-attributes:t
sgml-indent-step:1
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End:
-->
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