Mini Shell

Direktori : /opt/alt/postgresql11/usr/share/doc/alt-postgresql11-9.2.24/html/
Current File : //opt/alt/postgresql11/usr/share/doc/alt-postgresql11-9.2.24/html/plperl.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>PL/Perl - Perl Procedural Language</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.2.24 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Server Programming"
HREF="server-programming.html"><LINK
REL="PREVIOUS"
TITLE="Tcl Procedure Names"
HREF="pltcl-procnames.html"><LINK
REL="NEXT"
TITLE="PL/Perl Functions and Arguments"
HREF="plperl-funcs.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2017-11-06T22:43:11"></HEAD
><BODY
CLASS="CHAPTER"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.2.24 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="Tcl Procedure Names"
HREF="pltcl-procnames.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="server-programming.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
></TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="PL/Perl Functions and Arguments"
HREF="plperl-funcs.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="CHAPTER"
><H1
><A
NAME="PLPERL"
></A
>Chapter 41. PL/Perl - Perl Procedural Language</H1
><DIV
CLASS="TOC"
><DL
><DT
><B
>Table of Contents</B
></DT
><DT
>41.1. <A
HREF="plperl-funcs.html"
>PL/Perl Functions and Arguments</A
></DT
><DT
>41.2. <A
HREF="plperl-data.html"
>Data Values in PL/Perl</A
></DT
><DT
>41.3. <A
HREF="plperl-builtins.html"
>Built-in Functions</A
></DT
><DD
><DL
><DT
>41.3.1. <A
HREF="plperl-builtins.html#PLPERL-DATABASE"
>Database Access from PL/Perl</A
></DT
><DT
>41.3.2. <A
HREF="plperl-builtins.html#PLPERL-UTILITY-FUNCTIONS"
>Utility Functions in PL/Perl</A
></DT
></DL
></DD
><DT
>41.4. <A
HREF="plperl-global.html"
>Global Values in PL/Perl</A
></DT
><DT
>41.5. <A
HREF="plperl-trusted.html"
>Trusted and Untrusted PL/Perl</A
></DT
><DT
>41.6. <A
HREF="plperl-triggers.html"
>PL/Perl Triggers</A
></DT
><DT
>41.7. <A
HREF="plperl-under-the-hood.html"
>PL/Perl Under the Hood</A
></DT
><DD
><DL
><DT
>41.7.1. <A
HREF="plperl-under-the-hood.html#PLPERL-CONFIG"
>Configuration</A
></DT
><DT
>41.7.2. <A
HREF="plperl-under-the-hood.html#PLPERL-MISSING"
>Limitations and Missing Features</A
></DT
></DL
></DD
></DL
></DIV
><P
>   PL/Perl is a loadable procedural language that enables you to write
   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> functions in the
   <A
HREF="http://www.perl.org"
TARGET="_top"
>Perl programming language</A
>.
  </P
><P
>   The main advantage to using PL/Perl is that this allows use,
   within stored functions, of the manyfold <SPAN
CLASS="QUOTE"
>"string
   munging"</SPAN
> operators and functions available for Perl.  Parsing
   complex strings might be easier using Perl than it is with the
   string functions and control structures provided in PL/pgSQL.
  </P
><P
>   To install PL/Perl in a particular database, use
   <TT
CLASS="LITERAL"
>CREATE EXTENSION plperl</TT
>, or from the shell command line use
   <TT
CLASS="LITERAL"
>createlang plperl <TT
CLASS="REPLACEABLE"
><I
>dbname</I
></TT
></TT
>.
  </P
><DIV
CLASS="TIP"
><BLOCKQUOTE
CLASS="TIP"
><P
><B
>Tip: </B
>    If a language is installed into <TT
CLASS="LITERAL"
>template1</TT
>, all subsequently
    created databases will have the language installed automatically.
   </P
></BLOCKQUOTE
></DIV
><DIV
CLASS="NOTE"
><BLOCKQUOTE
CLASS="NOTE"
><P
><B
>Note: </B
>    Users of source packages must specially enable the build of
    PL/Perl during the installation process.  (Refer to <A
HREF="installation.html"
>Chapter 15</A
> for more information.)  Users of
    binary packages might find PL/Perl in a separate subpackage.
   </P
></BLOCKQUOTE
></DIV
></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="pltcl-procnames.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="plperl-funcs.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Tcl Procedure Names</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="server-programming.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>PL/Perl Functions and Arguments</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>
Zerion Mini Shell 1.0