File: sql-droptrigger.html

package info (click to toggle)
mpsql 2.1-2
links: PTS
area: non-free
in suites: potato
size: 3,528 kB
ctags: 4,886
sloc: ansic: 35,184; makefile: 3,761; sh: 44
file content (312 lines) | stat: -rw-r--r-- 3,778 bytes
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML
><HEAD
><TITLE
>   DROP TRIGGER
  </TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet version 1.19"><LINK
REL="HOME"
TITLE="PostgreSQL User's Guide"
HREF="user.html"><LINK
REL="UP"
TITLE="SQL Commands"
HREF="sql-commands.html"><LINK
REL="PREVIOUS"
TITLE="   DROP TABLE
  "
HREF="sql-droptable.html"><LINK
REL="NEXT"
TITLE="   DROP TYPE
  "
HREF="sql-droptype.html"></HEAD
><BODY
BGCOLOR="#FFFFFF"
TEXT="#000000"
><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>PostgreSQL User's Guide</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="sql-droptable.html"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="sql-droptype.html"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><H1
>DROP TRIGGER</H1
><DIV
CLASS="REFNAMEDIV"
><H2
>Name</H2
>   DROP TRIGGER
   &#8212;    Removes the definition of a trigger
  </DIV
><DIV
CLASS="REFSYNOPSISDIV"
><PRE
CLASS="SYNOPSIS"
>DROP TRIGGER <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> ON <TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
>
  </PRE
><DIV
CLASS="REFSECT2"
><H3
>    Inputs
   </H3
><P
>   </P
><P
></P
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
>   The name of an existing trigger.
	  </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
></DT
><DD
><P
>          The name of a table.
	  </P
></DD
></DL
></DIV
><DIV
CLASS="REFSECT2"
><H3
>    Outputs
   </H3
><P
>&#13;<P
></P
></P><DL
><DT
><SPAN
CLASS="RETURNVALUE"
>DROP</SPAN
></DT
><DD
><P
>	   The message returned if the trigger is successfully dropped.
	  </P
></DD
><DT
><SPAN
CLASS="RETURNVALUE"
>ERROR: DropTrigger: there is no trigger <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> on relation "<TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
>"</SPAN
></DT
><DD
><P
>          This message occurs if the trigger specified does not exist.&#13;</P
></DD
></DL
><P>
   
  </P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><H2
>   Description
  </H2
><P
>   <B
CLASS="COMMAND"
>DROP TRIGGER</B
> will remove all references to an existing
   trigger definition. To execute this command the current
   user must be the owner of the trigger.
  </P
><DIV
CLASS="REFSECT2"
><H3
>    Notes
   </H3
><P
>    <B
CLASS="COMMAND"
>DROP TRIGGER</B
> is a <SPAN
CLASS="PRODUCTNAME"
>Postgres</SPAN
>
    language extension.
   </P
><P
>    Refer to <B
CLASS="COMMAND"
>CREATE TRIGGER</B
> for
    information on how to create triggers.
   </P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><H2
>   Usage
  </H2
><P
>   Destroy the <TT
CLASS="LITERAL"
>if_dist_exists</TT
> trigger
 on table <TT
CLASS="LITERAL"
>films</TT
>:
  </P
><PRE
CLASS="PROGRAMLISTING"
>DROP TRIGGER if_dist_exists ON films;
  </PRE
></DIV
><DIV
CLASS="REFSECT1"
><H2
>   Compatibility
  </H2
><P
>  </P
><DIV
CLASS="REFSECT2"
><H3
>    SQL92
   </H3
><P
>    There is no <B
CLASS="COMMAND"
>DROP TRIGGER</B
> statement in
 <SPAN
CLASS="ACRONYM"
>SQL92</SPAN
>.
   </P
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="sql-droptable.html"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="user.html"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="sql-droptype.html"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>DROP TABLE</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="sql-commands.html"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>DROP TYPE</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>