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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>DROP PROCEDURE</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-droppolicy.html" title="DROP POLICY" /><link rel="next" href="sql-droppublication.html" title="DROP PUBLICATION" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">DROP PROCEDURE</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-droppolicy.html" title="DROP POLICY">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 11.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-droppublication.html" title="DROP PUBLICATION">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SQL-DROPPROCEDURE"><div class="titlepage"></div><a id="id-1.9.3.124.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">DROP PROCEDURE</span></h2><p>DROP PROCEDURE — remove a procedure</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
DROP PROCEDURE [ IF EXISTS ] <em class="replaceable"><code>name</code></em> [ ( [ [ <em class="replaceable"><code>argmode</code></em> ] [ <em class="replaceable"><code>argname</code></em> ] <em class="replaceable"><code>argtype</code></em> [, ...] ] ) ] [, ...]
[ CASCADE | RESTRICT ]
</pre></div><div class="refsect1" id="id-1.9.3.124.5"><h2>Description</h2><p>
<code class="command">DROP PROCEDURE</code> removes the definition of an existing
procedure. To execute this command the user must be the
owner of the procedure. The argument types to the
procedure must be specified, since several different procedures
can exist with the same name and different argument lists.
</p></div><div class="refsect1" id="id-1.9.3.124.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">IF EXISTS</code></span></dt><dd><p>
Do not throw an error if the procedure does not exist. A notice is issued
in this case.
</p></dd><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p>
The name (optionally schema-qualified) of an existing procedure. If no
argument list is specified, the name must be unique in its schema.
</p></dd><dt><span class="term"><em class="replaceable"><code>argmode</code></em></span></dt><dd><p>
The mode of an argument: <code class="literal">IN</code> or <code class="literal">VARIADIC</code>.
If omitted, the default is <code class="literal">IN</code>.
</p></dd><dt><span class="term"><em class="replaceable"><code>argname</code></em></span></dt><dd><p>
The name of an argument.
Note that <code class="command">DROP PROCEDURE</code> does not actually pay
any attention to argument names, since only the argument data
types are needed to determine the procedure's identity.
</p></dd><dt><span class="term"><em class="replaceable"><code>argtype</code></em></span></dt><dd><p>
The data type(s) of the procedure's arguments (optionally
schema-qualified), if any.
</p></dd><dt><span class="term"><code class="literal">CASCADE</code></span></dt><dd><p>
Automatically drop objects that depend on the procedure,
and in turn all objects that depend on those objects
(see <a class="xref" href="ddl-depend.html" title="5.13. Dependency Tracking">Section 5.13</a>).
</p></dd><dt><span class="term"><code class="literal">RESTRICT</code></span></dt><dd><p>
Refuse to drop the procedure if any objects depend on it. This
is the default.
</p></dd></dl></div></div><div class="refsect1" id="SQL-DROPPROCEDURE-EXAMPLES"><h2>Examples</h2><pre class="programlisting">
DROP PROCEDURE do_db_maintenance();
</pre></div><div class="refsect1" id="SQL-DROPPROCEDURE-COMPATIBILITY"><h2>Compatibility</h2><p>
This command conforms to the SQL standard, with
these <span class="productname">PostgreSQL</span> extensions:
</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><p>The standard only allows one procedure to be dropped per command.</p></li><li class="listitem"><p>The <code class="literal">IF EXISTS</code> option</p></li><li class="listitem"><p>The ability to specify argument modes and names</p></li></ul></div><p>
</p></div><div class="refsect1" id="id-1.9.3.124.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createprocedure.html" title="CREATE PROCEDURE"><span class="refentrytitle">CREATE PROCEDURE</span></a>, <a class="xref" href="sql-alterprocedure.html" title="ALTER PROCEDURE"><span class="refentrytitle">ALTER PROCEDURE</span></a>, <a class="xref" href="sql-dropfunction.html" title="DROP FUNCTION"><span class="refentrytitle">DROP FUNCTION</span></a>, <a class="xref" href="sql-droproutine.html" title="DROP ROUTINE"><span class="refentrytitle">DROP ROUTINE</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-droppolicy.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-droppublication.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DROP POLICY </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> DROP PUBLICATION</td></tr></table></div></body></html>
