<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title> Practical PostgreSQL</title>
<meta name="keywords" content="postgresql, support, recovery, design, software, hosting, expterise, programming, postgres, pgsql, replication, mysql, firebird, database, sql, free, open source, software" />
<meta name="description" content="Command Prompt, Inc. is the largest and oldest US based commercial PostgreSQL support provider. We provide the only commercially viable integrated PostgreSQL replication solution, but also custom programming, and support. We authored the book Practical PostgreSQL, the procedural language plPHP, and adding trigger capability to plPerl. " />
<link rel="shortcut icon" href="../favicon.ico" type="image/x-icon" />
<link rel="stylesheet" type="text/css" href="../css/layout.css" />
<link rel="stylesheet" type="text/css" href="../css/cmd4.css" />
<script language="javascript" type="text/javascript"><!--
greymenuhomewideLit = new Image();
greymenuhomewideLit.src = "/images/greymenu_homewide_lit.gif";
greymenuaboutLit = new Image();
greymenuaboutLit.src = "/images/greymenu_about_lit.gif";
greymenuproductsLit = new Image();
greymenuproductsLit.src = "/images/greymenu_products_lit.gif";
greymenuservicesLit = new Image();
greymenuservicesLit.src = "/images/greymenu_services_lit.gif";
greymenusupportLit = new Image();
greymenusupportLit.src = "/images/greymenu_support_lit.gif";
greymenucommunityLit = new Image();
greymenucommunityLit.src = "/images/greymenu_community_lit.gif";
//--></script>
</head>
<body>
<div align="center">
<div id="widecontainer">
<div id="widetop">
<div class="throwleft" style="width: 300px; text-align: left;"><a href="http://www.commandprompt.com/"><img src="../images/cmd4logo_wide.gif" border="0" alt="Command Prompt, Inc." /></a></div>
<div class="throwright" style="width: 400px; text-align: right;">
<div id="topright">
<form action="index.html" name="cmdform" method="post">
<ul>
<li><input type="text" name="search" value="" /></li>
<li><input type="submit" name="action" value="Search Book" /></li>
</ul>
</form>
</div>
</div>
</div>
<ul id="greymenu_wide">
<li><a href="http://www.commandprompt.com/home/"><img onmouseover="this.src = greymenuhomewideLit.src;" onmouseout="this.src = '/images/greymenu_homewide.gif';" src="../images/greymenu_homewide.gif" border="0" height="22" title="" alt="" /></a></li><li><img src="../images/greymenu_divider.gif" border="0" width="2" height="22" alt="|" /></li><li><a href="http://www.commandprompt.com/about/"><img onmouseover="this.src = greymenuaboutLit.src;" onmouseout="this.src = '/images/greymenu_about.gif';" src="../images/greymenu_about.gif" border="0" height="22" title="" alt="" /></a></li><li><img src="../images/greymenu_divider.gif" border="0" width="2" height="22" alt="|" /></li><li><a href="http://www.commandprompt.com/products/"><img onmouseover="this.src = greymenuproductsLit.src;" onmouseout="this.src = '/images/greymenu_products.gif';" src="../images/greymenu_products.gif" border="0" height="22" title="" alt="" /></a></li><li><img src="../images/greymenu_divider.gif" border="0" width="2" height="22" alt="|" /></li><li><a href="http://www.commandprompt.com/services/"><img onmouseover="this.src = greymenuservicesLit.src;" onmouseout="this.src = '/images/greymenu_services.gif';" src="../images/greymenu_services.gif" border="0" height="22" title="" alt="" /></a></li><li><img src="../images/greymenu_divider.gif" border="0" width="2" height="22" alt="|" /></li><li><a href="http://www.commandprompt.com/support/"><img onmouseover="this.src = greymenusupportLit.src;" onmouseout="this.src = '/images/greymenu_support.gif';" src="../images/greymenu_support.gif" border="0" height="22" title="" alt="" /></a></li><li><img src="../images/greymenu_divider.gif" border="0" width="2" height="22" alt="|" /></li><li><a href="http://www.commandprompt.com/community/"><img onmouseover="this.src = greymenucommunityLit.src;" onmouseout="this.src = '/images/greymenu_community.gif';" src="../images/greymenu_community.gif" border="0" height="22" title="" alt="" /></a></li> </ul>
<div style="padding-left: 16px; width: 96%;">
<HTML
><HEAD
><TITLE
>DROP TRIGGER</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.72
"><LINK
REL="HOME"
TITLE="Practical PostgreSQL"
href="book1"><LINK
REL="UP"
TITLE="PostgreSQL Command Reference"
href="c22759"><LINK
REL="PREVIOUS"
TITLE="DROP TABLE"
href="r26634"><LINK
REL="NEXT"
TITLE="DROP TYPE"
href="r26739"></HEAD
><BODY
CLASS="REFENTRY"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>Practical PostgreSQL</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
href="r26634"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
href="r26739"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
><A
NAME="SQL-DROPTRIGGER"
>DROP TRIGGER</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN26690"
></A
><H2
>Name</H2
>DROP TRIGGER -- Removes a trigger definition from a database.</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN26693"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DROP TRIGGER <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> ON <TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
></PRE
><DIV
CLASS="REFSECT2"
><A
NAME="R2-SQL-DROPTRIGGER-1"
></A
><H3
>Parameters</H3
><P
>
<P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
>The name of the trigger you wish to remove.</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
></DT
><DD
><P
>The name of the table the trigger is on.</P
></DD
></DL
></DIV
>
</P
></DIV
><DIV
CLASS="REFSECT2"
><A
NAME="R2-SQL-DROPTRIGGER-2"
></A
><H3
>Results</H3
><P
>
<P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="LITERAL"
>DROP</TT
></DT
><DD
><P
>The message returned when a trigger is successfully dropped.</P
></DD
><DT
><TT
CLASS="LITERAL"
>ERROR: DropTrigger: there is no trigger name on relation table</TT
></DT
><DD
><P
>The error returned if the trigger <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> does not exist on <TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
>.</P
></DD
></DL
></DIV
>
</P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="R1-SQL-DROPTRIGGER-1"
></A
><H2
>Description</H2
><P
>Use the <TT
CLASS="LITERAL"
>DROP TRIGGER</TT
> command to remove a trigger from the database. All references to the trigger are removed when you issue this command. You must be the owner of trigger in order to drop it.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="R1-SQL-DROPTRIGGER-2"
></A
><H2
>Examples</H2
><P
>The following command removes the <TT
CLASS="LITERAL"
>sync_authors_books</TT
> trigger from the <TT
CLASS="LITERAL"
>authors</TT
> table, in the <TT
CLASS="LITERAL"
>booktown</TT
> database:</P
><PRE
CLASS="SCREEN"
>booktown=# <TT
CLASS="USERINPUT"
><B
>DROP TRIGGER sync_authors_books ON authors;</B
></TT
>
DROP</PRE
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
href="r26634"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
href="book1"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
href="r26739"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>DROP TABLE</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
href="c22759"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>DROP TYPE</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
</div>
<br />
<div id="thefineprint">
<a href="http://www.commandprompt.com/products/mammothpostgresql/"><img src="../images/powered_by_mammoth.gif" alt="Powered by Mammoth PostgreSQL" title="Powered by Mammoth PostgreSQL" border="0" /></a>
<br />
Copyright © 2000-2007 Command Prompt, Inc. All Rights Reserved. All trademarks property of their respective owners.
</div>
</div>
</div>
</body>
</html>