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<!--
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_language.sgml,v 1.17 2003/06/27 14:45:26 petere Exp $
PostgreSQL documentation
-->
<refentry id="SQL-DROPLANGUAGE">
<refmeta>
<refentrytitle id="SQL-DROPLANGUAGE-TITLE">DROP LANGUAGE</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DROP LANGUAGE</refname>
<refpurpose>remove a user-defined procedural language</refpurpose>
</refnamediv>
<refsynopsisdiv>
<synopsis>
DROP [ PROCEDURAL ] LANGUAGE <replaceable class="PARAMETER">name</replaceable> [ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>DROP LANGUAGE</command> will remove the definition
of the previously registered procedural language called
<replaceable class="parameter">name</replaceable>.
</para>
</refsect1>
<refsect1>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term><replaceable class="PARAMETER">name</replaceable></term>
<listitem>
<para>
The name of an existing procedural language. For backward
compatibility, the name may be enclosed by single quotes.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>CASCADE</literal></term>
<listitem>
<para>
Automatically drop objects that depend on the language (such as
functions in the language).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>RESTRICT</literal></term>
<listitem>
<para>
Refuse to drop the language if any objects depend on it. This
is the default.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Diagnostics</title>
<variablelist>
<varlistentry>
<term><computeroutput>DROP LANGUAGE</computeroutput></term>
<listitem>
<para>
This message is returned if the language was successfully dropped.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><computeroutput>ERROR: Language "<replaceable class="parameter">name</replaceable>" doesn't exist</computeroutput></term>
<listitem>
<para>
This message is returned if a language called <replaceable
class="parameter">name</replaceable> is not found in the
database.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
This command removes the procedural language
<literal>plsample</literal>:
<programlisting>
DROP LANGUAGE plsample;
</programlisting>
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
There is no <command>DROP LANGUAGE</command> statement in the SQL
standard.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-alterlanguage" endterm="sql-alterlanguage-title"></member>
<member><xref linkend="sql-createlanguage" endterm="sql-createlanguage-title"></member>
<member><xref linkend="app-droplang"></member>
</simplelist>
</refsect1>
</refentry>
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