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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 V1.79.1" /><link rel="prev" href="sql-droppolicy.html" title="DROP POLICY" /><link rel="next" href="sql-droppublication.html" title="DROP PUBLICATION" /></head><body id="docContent" class="container-fluid col-10"><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 13.4 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="5.14. Dependency Tracking">Section 5.14</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></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 xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-droppolicy.html" title="DROP POLICY">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-droppublication.html" title="DROP PUBLICATION">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" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DROP PUBLICATION</td></tr></table></div></body></html> \ No newline at end of file