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  • Committer: Bazaar Package Importer
  • Author(s): Martin Pitt
  • Date: 2011-05-11 10:41:53 UTC
  • Revision ID: james.westby@ubuntu.com-20110511104153-psbh2o58553fv1m0
Tags: upstream-9.1~beta1
Import upstream version 9.1~beta1

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doc/src/sgml/html/triggers.html
 
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 
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<HTML
 
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><HEAD
 
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><TITLE
 
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>Triggers</TITLE
 
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><META
 
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NAME="GENERATOR"
 
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CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
 
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REV="MADE"
 
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HREF="mailto:pgsql-docs@postgresql.org"><LINK
 
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REL="HOME"
 
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TITLE="PostgreSQL 9.1beta1 Documentation"
 
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HREF="index.html"><LINK
 
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REL="UP"
 
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TITLE="Server Programming"
 
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HREF="server-programming.html"><LINK
 
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REL="PREVIOUS"
 
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TITLE="Extension Building Infrastructure"
 
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HREF="extend-pgxs.html"><LINK
 
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REL="NEXT"
 
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TITLE="Overview of Trigger Behavior"
 
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HREF="trigger-definition.html"><LINK
 
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REL="STYLESHEET"
 
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TYPE="text/css"
 
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HREF="stylesheet.css"><META
 
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HTTP-EQUIV="Content-Type"
 
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CONTENT="text/html; charset=ISO-8859-1"><META
 
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NAME="creation"
 
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CONTENT="2011-04-27T21:20:33"></HEAD
 
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><BODY
 
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CLASS="CHAPTER"
 
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><DIV
 
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CLASS="NAVHEADER"
 
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><TABLE
 
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><TR
 
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><A
 
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>PostgreSQL 9.1beta1 Documentation</A
 
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><TR
 
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WIDTH="10%"
 
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><A
 
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TITLE="Extension Building Infrastructure"
 
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HREF="extend-pgxs.html"
 
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>Prev</A
 
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><TD
 
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><A
 
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TITLE="Extending SQL"
 
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>Fast Backward</A
 
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>Fast Forward</A
 
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TITLE="Overview of Trigger Behavior"
 
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>Next</A
 
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WIDTH="100%"></DIV
 
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><DIV
 
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CLASS="CHAPTER"
 
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><H1
 
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NAME="TRIGGERS"
 
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></A
 
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>Chapter 36. Triggers</H1
 
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><DIV
 
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CLASS="TOC"
 
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><DL
 
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><DT
 
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><B
 
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>Table of Contents</B
 
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></DT
 
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><DT
 
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>36.1. <A
 
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HREF="trigger-definition.html"
 
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>Overview of Trigger Behavior</A
 
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></DT
 
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><DT
 
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>36.2. <A
 
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HREF="trigger-datachanges.html"
 
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>Visibility of Data Changes</A
 
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></DT
 
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><DT
 
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>36.3. <A
 
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HREF="trigger-interface.html"
 
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>Writing Trigger Functions in C</A
 
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></DT
 
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><DT
 
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>36.4. <A
 
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HREF="trigger-example.html"
 
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>A Complete Trigger Example</A
 
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></DT
 
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></DL
 
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></DIV
 
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><P
 
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>   This chapter provides general information about writing trigger functions.
 
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   Trigger functions can be written in most of the available procedural
 
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   languages, including
 
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   <SPAN
 
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CLASS="APPLICATION"
 
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>PL/pgSQL</SPAN
 
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> (<A
 
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HREF="plpgsql.html"
 
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>Chapter 39</A
 
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>),
 
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   <SPAN
 
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CLASS="APPLICATION"
 
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>PL/Tcl</SPAN
 
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> (<A
 
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HREF="pltcl.html"
 
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>Chapter 40</A
 
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>),
 
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   <SPAN
 
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CLASS="APPLICATION"
 
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>PL/Perl</SPAN
 
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> (<A
 
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HREF="plperl.html"
 
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>Chapter 41</A
 
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>), and
 
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   <SPAN
 
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CLASS="APPLICATION"
 
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>PL/Python</SPAN
 
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> (<A
 
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HREF="plpython.html"
 
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>Chapter 42</A
 
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>).
 
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   After reading this chapter, you should consult the chapter for
 
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   your favorite procedural language to find out the language-specific
 
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   details of writing a trigger in it.
 
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  </P
 
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><P
 
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>   It is also possible to write a trigger function in C, although
 
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   most people find it easier to use one of the procedural languages.
 
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   It is not currently possible to write a trigger function in the
 
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   plain SQL function language.
 
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  </P
 
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></DIV
 
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><DIV
 
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CLASS="NAVFOOTER"
 
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><HR
 
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WIDTH="100%"><TABLE
 
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><TR
 
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><TD
 
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WIDTH="33%"
 
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ALIGN="left"
 
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VALIGN="top"
 
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><A
 
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HREF="extend-pgxs.html"
 
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ACCESSKEY="P"
 
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>Prev</A
 
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></TD
 
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><TD
 
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WIDTH="34%"
 
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ALIGN="center"
 
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VALIGN="top"
 
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><A
 
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HREF="index.html"
 
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>Home</A
 
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></TD
 
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><TD
 
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WIDTH="33%"
 
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ALIGN="right"
 
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VALIGN="top"
 
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><A
 
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>Next</A
 
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><TR
 
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><TD
 
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WIDTH="33%"
 
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>Extension Building Infrastructure</TD
 
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><TD
 
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WIDTH="34%"
 
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ALIGN="center"
 
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><A
 
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HREF="server-programming.html"
 
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>Up</A
 
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></TD
 
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><TD
 
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WIDTH="33%"
 
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ALIGN="right"
 
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>Overview of Trigger Behavior</TD
 
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></TR
 
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></BODY
 
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></HTML
 
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>
 
 
b'\\ No newline at end of file'