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<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/start_transaction.sgml,v 1.11 2004/01/11 05:46:58 neilc Exp $
PostgreSQL documentation
-->
<refentry id="SQL-START-TRANSACTION">
<refmeta>
<refentrytitle id="SQL-START-TRANSACTION-TITLE">START TRANSACTION</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>START TRANSACTION</refname>
<refpurpose>start a transaction block</refpurpose>
</refnamediv>
<indexterm zone="sql-start-transaction">
<primary>START TRANSACTION</primary>
</indexterm>
<refsynopsisdiv>
<synopsis>
START TRANSACTION
[ ISOLATION LEVEL { READ UNCOMMITTED | READ COMMITTED | REPEATABLE READ | SERIALIZABLE } ]
[ READ WRITE | READ ONLY ]
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
This command begins a new transaction. If the isolation level or
read/write mode is specified, the new transaction has those
characteristics, as if <xref linkend="sql-set-transaction"
endterm="sql-set-transaction-title"> was executed. It is the same
as the <xref linkend="sql-begin" endterm="sql-begin-title"> command.
</para>
</refsect1>
<refsect1>
<title>Parameters</title>
<para>
Refer to <xref linkend="sql-set-transaction"
endterm="sql-set-transaction-title"> for information on the meaning
of the parameters to this statement.
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
This command conforms to the SQL standard; but see also the
compatibility section of <xref linkend="sql-set-transaction"
endterm="sql-set-transaction-title">.
</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>
<member><xref linkend="sql-set-transaction" endterm="sql-set-transaction-title"></member>
</simplelist>
</refsect1>
</refentry>
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sgml-default-dtd-file:"../reference.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:("/usr/lib/sgml/catalog")
sgml-local-ecat-files:nil
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-->
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