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$Header: /cvsroot/pgsql/doc/src/sgml/ref/commit.sgml,v 1.13 2002/03/06 06:48:03 momjian Exp $
PostgreSQL documentation
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<refentry id="SQL-COMMIT">
 <refmeta>
  <refentrytitle id="SQL-COMMIT-TITLE">
   COMMIT
  </refentrytitle>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>
 <refnamediv>
  <refname>
   COMMIT
  </refname>
  <refpurpose>
   commit the current transaction
  </refpurpose>
 </refnamediv>  
  
 <refsynopsisdiv>
  <refsynopsisdivinfo>
   <date>1999-07-20</date>
  </refsynopsisdivinfo>
  <synopsis>
COMMIT [ WORK | TRANSACTION ]
  </synopsis>
  
  <refsect2 id="R2-SQL-COMMIT-1">
   <refsect2info>
    <date>1998-09-08</date>
   </refsect2info>
   <title>
    Inputs
   </title>
   <para>

    <variablelist>
     <varlistentry>
      <term>WORK</term>
      <term>TRANSACTION</term>
      <listitem>
       <para>
	Optional keywords. They have no effect.
       </para>
      </listitem>
     </varlistentry>
    </variablelist>
   </para>
  </refsect2>
   
  <refsect2 id="R2-SQL-COMMIT-2">
   <refsect2info>
    <date>1998-09-08</date>
   </refsect2info>
   <title>
    Outputs
   </title>
   <para>

    <variablelist>
     <varlistentry>
      <term><computeroutput>
COMMIT
       </computeroutput></term>
      <listitem>
       <para>
	Message returned if the transaction is successfully committed.
       </para>
      </listitem>
     </varlistentry>
     <varlistentry>
      <term><computeroutput>
WARNING:  COMMIT: no transaction in progress
       </computeroutput></term>
      <listitem>
       <para>
	If there is no transaction in progress.
       </para>
      </listitem>
     </varlistentry>
    </variablelist>
   </para>
  </refsect2>
 </refsynopsisdiv>
  
 <refsect1 id="R1-SQL-COMMIT-1">
  <refsect1info>
   <date>1998-09-08</date>
  </refsect1info>
  <title>
   Description
  </title>
  <para>
   <command>COMMIT</command> commits the current transaction. All
   changes made by the transaction become visible to others
   and are guaranteed to be durable if a crash occurs.
  </para>
  
  <refsect2 id="R2-SQL-COMMIT-3">
   <refsect2info>
    <date>1998-09-08</date>
   </refsect2info>
   <title>
    Notes
   </title>
   <para>
    The keywords WORK and TRANSACTION are noise and can be omitted.
   </para>

   <para>
    Use <xref linkend="SQL-ROLLBACK" endterm="SQL-ROLLBACK-TITLE">
    to abort a transaction.
   </para>
  </refsect2>
 </refsect1>

 <refsect1 id="R1-SQL-COMMIT-2">
  <title>
   Usage
  </title>
  <para>
   To make all changes permanent:
   <programlisting>
COMMIT WORK;
   </programlisting>
  </para>
 </refsect1>
 
 <refsect1 id="R1-SQL-COMMIT-3">
  <title>
   Compatibility
  </title>
  
  <refsect2 id="R2-SQL-COMMIT-4">
   <refsect2info>
    <date>1998-09-08</date>
   </refsect2info>
   <title>
    SQL92
   </title>
   <para>
    <acronym>SQL92</acronym> only specifies the two forms <literal>COMMIT</literal>
    and <literal>COMMIT WORK</literal>. Otherwise full compatibility.
   </para>
  </refsect2>
 </refsect1>
</refentry>

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