Sophie

Sophie

distrib > Mandriva > 2008.1 > x86_64 > media > main-testing > by-pkgid > bab02a23fa9f3df8d66a9a3231b50245 > files > 875

postgresql8.3-docs-8.3.6-2mdv2008.1.x86_64.rpm

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Introduction</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 8.3.6 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="The SQL Language"
HREF="tutorial-sql.html"><LINK
REL="PREVIOUS"
TITLE="The SQL Language"
HREF="tutorial-sql.html"><LINK
REL="NEXT"
TITLE="Concepts"
HREF="tutorial-concepts.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="2009-02-03T04:34:16"></HEAD
><BODY
CLASS="SECT1"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
>PostgreSQL 8.3.6 Documentation</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="tutorial-sql.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="tutorial-sql.html"
>Fast Backward</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
>Chapter 2. The <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
> Language</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="top"
><A
HREF="tutorial-sql.html"
>Fast Forward</A
></TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="top"
><A
HREF="tutorial-concepts.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="TUTORIAL-SQL-INTRO"
>2.1. Introduction</A
></H1
><P
>    This chapter provides an overview of how to use
    <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
> to perform simple operations.  This
    tutorial is only intended to give you an introduction and is in no
    way a complete tutorial on <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
>.  Numerous books
    have been written on <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
>, including <A
HREF="biblio.html#MELT93"
><I
>Understanding the New <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
></I
></A
> and <A
HREF="biblio.html#DATE97"
><I
>A Guide to the <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
> Standard</I
></A
>.
    You should be aware that some <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
    language features are extensions to the standard.
   </P
><P
>    In the examples that follow, we assume that you have created a
    database named <TT
CLASS="LITERAL"
>mydb</TT
>, as described in the previous
    chapter, and have been able to start <SPAN
CLASS="APPLICATION"
>psql</SPAN
>.
   </P
><P
>    Examples in this manual can also be found in the
    <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> source distribution
    in the directory <TT
CLASS="FILENAME"
>src/tutorial/</TT
>.  To use those
    files, first change to that directory and run <SPAN
CLASS="APPLICATION"
>make</SPAN
>:

</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>cd <TT
CLASS="REPLACEABLE"
><I
>....</I
></TT
>/src/tutorial</KBD
>
<SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>make</KBD
></PRE
><P>

    This creates the scripts and compiles the C files containing user-defined
    functions and types.  (If you installed a pre-packaged version of
    <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> rather than building from source,
    look for a directory named <TT
CLASS="FILENAME"
>tutorial</TT
> within the
    <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> documentation.  The <SPAN
CLASS="QUOTE"
>"make"</SPAN
>
    part should already have been done for you.)
    Then, to start the tutorial, do the following:

</P><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>cd <TT
CLASS="REPLACEABLE"
><I
>....</I
></TT
>/tutorial</KBD
>
<SAMP
CLASS="PROMPT"
>$</SAMP
> <KBD
CLASS="USERINPUT"
>psql -s mydb</KBD
>
<SAMP
CLASS="COMPUTEROUTPUT"
>...</SAMP
>

<SAMP
CLASS="PROMPT"
>mydb=&gt;</SAMP
> <KBD
CLASS="USERINPUT"
>\i basics.sql</KBD
></PRE
><P>

    The <TT
CLASS="LITERAL"
>\i</TT
> command reads in commands from the
    specified file. The <TT
CLASS="LITERAL"
>-s</TT
> option puts you in
    single step mode which pauses before sending each statement to the
    server.  The commands used in this section are in the file
    <TT
CLASS="FILENAME"
>basics.sql</TT
>.
   </P
></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="tutorial-sql.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="tutorial-concepts.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>The <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
> Language</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="tutorial-sql.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Concepts</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>