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<!--
doc/src/sgml/ref/drop_routine.sgml
PostgreSQL documentation
-->
<refentry id="sql-droproutine">
<indexterm zone="sql-droproutine">
<primary>DROP ROUTINE</primary>
</indexterm>
<refmeta>
<refentrytitle>DROP ROUTINE</refentrytitle>
<manvolnum>7</manvolnum>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DROP ROUTINE</refname>
<refpurpose>remove a routine</refpurpose>
</refnamediv>
<refsynopsisdiv>
<synopsis>
DROP ROUTINE [ IF EXISTS ] <replaceable class="parameter">name</replaceable> [ ( [ [ <replaceable class="parameter">argmode</replaceable> ] [ <replaceable class="parameter">argname</replaceable> ] <replaceable class="parameter">argtype</replaceable> [, ...] ] ) ] [, ...]
[ CASCADE | RESTRICT ]
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>DROP ROUTINE</command> removes the definition of an existing
routine, which can be an aggregate function, a normal function, or a
procedure. See
under <xref linkend="sql-dropaggregate"/>, <xref linkend="sql-dropfunction"/>,
and <xref linkend="sql-dropprocedure"/> for the description of the
parameters, more examples, and further details.
</para>
</refsect1>
<refsect1 id="sql-droproutine-examples">
<title>Examples</title>
<para>
To drop the routine <literal>foo</literal> for type
<type>integer</type>:
<programlisting>
DROP ROUTINE foo(integer);
</programlisting>
This command will work independent of whether <literal>foo</literal> is an
aggregate, function, or procedure.
</para>
</refsect1>
<refsect1 id="sql-droproutine-compatibility">
<title>Compatibility</title>
<para>
This command conforms to the SQL standard, with
these <productname>PostgreSQL</productname> extensions:
<itemizedlist>
<listitem>
<para>The standard only allows one routine to be dropped per command.</para>
</listitem>
<listitem>
<para>The <literal>IF EXISTS</literal> option</para>
</listitem>
<listitem>
<para>The ability to specify argument modes and names</para>
</listitem>
<listitem>
<para>Aggregate functions are an extension.</para>
</listitem>
</itemizedlist></para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-dropaggregate"/></member>
<member><xref linkend="sql-dropfunction"/></member>
<member><xref linkend="sql-dropprocedure"/></member>
<member><xref linkend="sql-alterroutine"/></member>
</simplelist>
<para>
Note that there is no <literal>CREATE ROUTINE</literal> command.
</para>
</refsect1>
</refentry>
|
