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<chapter id="tutorial-sql">

<title>The <acronym>SQL</acronym> Language</title>

<para>

Examples in this manual can also be found in the

<productname>PostgreSQL</productname> source distribution

in the directory <filename>src/tutorial/</filename>. To use those

in the directory <filename>src/tutorial/</filename>. (Binary

distributions of <productname>PostgreSQL</productname> might not

compile these files.) To use those

files, first change to that directory and run <application>make</>:

<screen>

</screen>

This creates the scripts and compiles the C files containing user-defined

functions and types. (If you installed a pre-packaged version of

<productname>PostgreSQL</productname> rather than building from source,

look for a directory named <filename>tutorial</> within the

<productname>PostgreSQL</productname> distribution. The <quote>make</>

part should already have been done for you.)

Then, to start the tutorial, do the following:

functions and types. Then, to start the tutorial, do the following:

<screen>

<prompt>$</prompt> <userinput>cd <replaceable>....</replaceable>/tutorial</userinput>