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another section if required by the platform (instead of the old way of building them in section "l" and always transforming them to the platform-specific section). This speeds up the installation on common platforms, and it avoids some funny business with the man page tools and build process.
98 lines
2.1 KiB
Plaintext
98 lines
2.1 KiB
Plaintext
<!--
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$PostgreSQL: pgsql/doc/src/sgml/ref/rollback.sgml,v 1.20 2008/11/14 10:22:47 petere Exp $
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PostgreSQL documentation
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-->
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<refentry id="SQL-ROLLBACK">
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<refmeta>
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<refentrytitle id="SQL-ROLLBACK-TITLE">ROLLBACK</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>ROLLBACK</refname>
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<refpurpose>abort the current transaction</refpurpose>
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</refnamediv>
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<indexterm zone="sql-rollback">
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<primary>ROLLBACK</primary>
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</indexterm>
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<refsynopsisdiv>
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<synopsis>
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ROLLBACK [ WORK | TRANSACTION ]
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</synopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<command>ROLLBACK</command> rolls back the current transaction and causes
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all the updates made by the transaction to be discarded.
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</para>
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</refsect1>
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<refsect1>
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<title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><literal>WORK</literal></term>
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<term><literal>TRANSACTION</literal></term>
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<listitem>
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<para>
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Optional key words. They have no effect.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Notes</title>
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<para>
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Use <xref linkend="SQL-COMMIT" endterm="SQL-COMMIT-TITLE"> to
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successfully terminate a transaction.
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</para>
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<para>
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Issuing <command>ROLLBACK</> when not inside a transaction does
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no harm, but it will provoke a warning message.
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</para>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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To abort all changes:
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<programlisting>
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ROLLBACK;
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</programlisting>
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</para>
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</refsect1>
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<refsect1>
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<title>Compatibility</title>
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<para>
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The SQL standard only specifies the two forms
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<literal>ROLLBACK</literal> and <literal>ROLLBACK
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WORK</literal>. Otherwise, this command is fully conforming.
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="sql-begin" endterm="sql-begin-title"></member>
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<member><xref linkend="sql-commit" endterm="sql-commit-title"></member>
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<member><xref linkend="sql-rollback-to" endterm="sql-rollback-to-title"></member>
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</simplelist>
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</refsect1>
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</refentry>
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