end.sgml

来自「postgresql8.3.4源码,开源数据库」· SGML 代码 · 共 102 行

<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/end.sgml,v 1.14 2006/09/16 00:30:18 momjian Exp $
PostgreSQL documentation
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<refentry id="SQL-END">
 <refmeta>
  <refentrytitle id="SQL-END-TITLE">END</refentrytitle>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>END</refname>
  <refpurpose>commit the current transaction</refpurpose>
 </refnamediv>

 <indexterm zone="sql-end">
  <primary>END</primary>
 </indexterm>

 <refsynopsisdiv>
<synopsis>
END [ WORK | TRANSACTION ]
</synopsis>
 </refsynopsisdiv>
  
 <refsect1>
  <title>Description</title>

  <para>
   <command>END</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.  This command is a
   <productname>PostgreSQL</productname> extension
   that is equivalent to <xref linkend="sql-commit"
   endterm="sql-commit-title">.
  </para>
 </refsect1>
  
 <refsect1>
  <title>Parameters</title>

  <variablelist>
   <varlistentry>
    <term><literal>WORK</literal></term>
    <term><literal>TRANSACTION</literal></term>
    <listitem>
     <para>
      Optional key words. They have no effect.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1>
  <title>Notes</title>

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

  <para>
   Issuing <command>END</> when not inside a transaction does
   no harm, but it will provoke a warning message.
  </para>
 </refsect1>

 <refsect1>
  <title>Examples</title>

  <para>
   To commit the current transaction and make all changes permanent:
<programlisting>
END;
</programlisting>
  </para>
 </refsect1>

 <refsect1>
  <title>Compatibility</title>
  
  <para>
   <command>END</command> is a <productname>PostgreSQL</productname>
   extension that provides functionality equivalent to <xref
   linkend="sql-commit" endterm="sql-commit-title">, which is
   specified in the SQL standard.
  </para>
 </refsect1>

 <refsect1>
  <title>See Also</title>

  <simplelist type="inline">
   <member><xref linkend="sql-begin" endterm="sql-begin-title"></member>
   <member><xref linkend="sql-commit" endterm="sql-commit-title"></member>
   <member><xref linkend="sql-rollback" endterm="sql-rollback-title"></member>
  </simplelist>
 </refsect1>
</refentry>