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Since some preparation work had already been done, the only source changes left were changing empty-element tags like <xref linkend="foo"> to <xref linkend="foo"/>, and changing the DOCTYPE. The source files are still named *.sgml, but they are actually XML files now. Renaming could be considered later. In the build system, the intermediate step to convert from SGML to XML is removed. Everything is build straight from the source files again. The OpenSP (or the old SP) package is no longer needed. The documentation toolchain instructions are updated and are much simpler now. Peter Eisentraut, Alexander Lakhin, Jürgen Purtz
101 lines
2.1 KiB
Plaintext
101 lines
2.1 KiB
Plaintext
<!--
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doc/src/sgml/ref/abort.sgml
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PostgreSQL documentation
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-->
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<refentry id="sql-abort">
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<indexterm zone="sql-abort">
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<primary>ABORT</primary>
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</indexterm>
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<refmeta>
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<refentrytitle>ABORT</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>ABORT</refname>
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<refpurpose>abort the current transaction</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>
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ABORT [ 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>ABORT</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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This command is identical
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in behavior to the standard <acronym>SQL</acronym> command
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<xref linkend="sql-rollback"/>,
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and is present only for historical reasons.
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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"/> 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>ABORT</command> outside of a transaction block
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emits a warning and otherwise has no effect.
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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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ABORT;
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</programlisting></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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This command is a <productname>PostgreSQL</productname> extension
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present for historical reasons. <command>ROLLBACK</command> is the
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equivalent standard SQL command.
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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"/></member>
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<member><xref linkend="sql-commit"/></member>
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<member><xref linkend="sql-rollback"/></member>
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</simplelist>
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</refsect1>
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</refentry>
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