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committed, but will be within a week or two). Actually include the reference page into the docs...
139 lines
2.8 KiB
Plaintext
139 lines
2.8 KiB
Plaintext
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/truncate.sgml,v 1.2 1999/10/01 15:24:09 thomas Exp $
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Postgres documentation
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-->
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<refentry id="SQL-TRUNCATE">
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<refmeta>
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<refentrytitle id="SQL-TRUNCATE-TITLE">
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TRUNCATE
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</refentrytitle>
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<refmiscinfo>SQL - Language Statements</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>
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TRUNCATE
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</refname>
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<refpurpose>
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Empty a table
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<refsynopsisdivinfo>
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<date>1999-07-20</date>
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</refsynopsisdivinfo>
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<synopsis>
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TRUNCATE [ TABLE ] <replaceable class="PARAMETER">name</replaceable>
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</synopsis>
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<refsect2 id="R2-SQL-TRUNCATE-1">
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<refsect2info>
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<date>1998-09-08</date>
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</refsect2info>
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<title>
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Inputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><replaceable class="PARAMETER">name</replaceable></term>
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<listitem>
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<para>
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The name of the table to be truncated.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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<refsect2 id="R2-SQL-TRUNCATE-2">
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<refsect2info>
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<date>1998-09-08</date>
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</refsect2info>
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<title>
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Outputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term><computeroutput>
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TRUNCATE
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</computeroutput></term>
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<listitem>
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<para>
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Message returned if the table is successfully truncated.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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</refsynopsisdiv>
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<refsect1 id="R1-SQL-TRUNCATE-1">
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<refsect1info>
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<date>1998-09-08</date>
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</refsect1info>
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<title>
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Description
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</title>
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<para>
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<command>TRUNCATE</command> quickly removes all rows from a
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table. It has the same effect as an unqualified
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<command>DELETE</command> but since it does not actually scan the
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table it is faster. This is most effective on large tables.
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</para>
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</refsect1>
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<refsect1 id="R1-SQL-TRUNCATE-2">
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<title>
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Usage
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</title>
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<para>
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Truncate the table <literal>bigtable</literal>:
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<programlisting>
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TRUNCATE TABLE bigtable;
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</programlisting>
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</para>
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</refsect1>
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<refsect1 id="R1-SQL-TRUNCATE-3">
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<title>
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Compatibility
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</title>
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<refsect2 id="R2-SQL-TRUNCATE-4">
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<refsect2info>
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<date>1998-09-08</date>
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</refsect2info>
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<title>
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SQL92
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</title>
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<para>
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There is no <command>TRUNCATE</command> in <acronym>SQL92</acronym>.
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</para>
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</refsect2>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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