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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >ROLLBACK</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REV="MADE" HREF="mailto:pgsql-docs@postgresql.org"><LINK REL="HOME" TITLE="PostgreSQL 9.2.24 Documentation" HREF="index.html"><LINK REL="UP" TITLE="SQL Commands" HREF="sql-commands.html"><LINK REL="PREVIOUS" TITLE="REVOKE" HREF="sql-revoke.html"><LINK REL="NEXT" TITLE="ROLLBACK PREPARED" HREF="sql-rollback-prepared.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="stylesheet.css"><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"><META NAME="creation" CONTENT="2017-11-06T22:43:11"></HEAD ><BODY CLASS="REFENTRY" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="5" ALIGN="center" VALIGN="bottom" ><A HREF="index.html" >PostgreSQL 9.2.24 Documentation</A ></TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A TITLE="REVOKE" HREF="sql-revoke.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="10%" ALIGN="left" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="60%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="20%" ALIGN="right" VALIGN="top" ><A TITLE="ROLLBACK PREPARED" HREF="sql-rollback-prepared.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SQL-ROLLBACK" ></A >ROLLBACK</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN77222" ></A ><H2 >Name</H2 >ROLLBACK -- abort the current transaction</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN77227" ></A ><H2 >Synopsis</H2 ><PRE CLASS="SYNOPSIS" >ROLLBACK [ WORK | TRANSACTION ]</PRE ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77229" ></A ><H2 >Description</H2 ><P > <TT CLASS="COMMAND" >ROLLBACK</TT > rolls back the current transaction and causes all the updates made by the transaction to be discarded. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77233" ></A ><H2 >Parameters</H2 ><P ></P ><DIV CLASS="VARIABLELIST" ><DL ><DT ><TT CLASS="LITERAL" >WORK</TT ><BR><TT CLASS="LITERAL" >TRANSACTION</TT ></DT ><DD ><P > Optional key words. They have no effect. </P ></DD ></DL ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77243" ></A ><H2 >Notes</H2 ><P > Use <A HREF="sql-commit.html" >COMMIT</A > to successfully terminate a transaction. </P ><P > Issuing <TT CLASS="COMMAND" >ROLLBACK</TT > when not inside a transaction does no harm, but it will provoke a warning message. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77249" ></A ><H2 >Examples</H2 ><P > To abort all changes: </P><PRE CLASS="PROGRAMLISTING" >ROLLBACK;</PRE ><P></P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77253" ></A ><H2 >Compatibility</H2 ><P > The SQL standard only specifies the two forms <TT CLASS="LITERAL" >ROLLBACK</TT > and <TT CLASS="LITERAL" >ROLLBACK WORK</TT >. Otherwise, this command is fully conforming. </P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN77258" ></A ><H2 >See Also</H2 ><A HREF="sql-begin.html" >BEGIN</A >, <A HREF="sql-commit.html" >COMMIT</A >, <A HREF="sql-rollback-to.html" >ROLLBACK TO SAVEPOINT</A ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sql-revoke.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sql-rollback-prepared.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >REVOKE</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="sql-commands.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >ROLLBACK PREPARED</TD ></TR ></TABLE ></DIV ></BODY ></HTML >