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><H1
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NAME="SQL-ABORT"
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>ABORT</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN62375"
></A
><H2
>Name</H2
>ABORT&nbsp;--&nbsp;abort the current transaction</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN62380"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>ABORT [ WORK | TRANSACTION ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62382"
></A
><H2
>Description</H2
><P
>   <TT
CLASS="COMMAND"
>ABORT</TT
> rolls back the current transaction and causes
   all the updates made by the transaction to be discarded.
   This command is identical
   in behavior to the standard <ACRONYM
CLASS="ACRONYM"
>SQL</ACRONYM
> command
   <A
HREF="sql-rollback.html"
>ROLLBACK</A
>,
   and is present only for historical reasons.
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62388"
></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="AEN62398"
></A
><H2
>Notes</H2
><P
>   Use <A
HREF="sql-commit.html"
>COMMIT</A
> to
   successfully terminate a transaction.
  </P
><P
>   Issuing <TT
CLASS="COMMAND"
>ABORT</TT
> when not inside a transaction does
   no harm, but it will provoke a warning message.
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62404"
></A
><H2
>Examples</H2
><P
>   To abort all changes:
</P><PRE
CLASS="PROGRAMLISTING"
>ABORT;</PRE
><P></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62408"
></A
><H2
>Compatibility</H2
><P
>   This command is a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> extension
   present for historical reasons. <TT
CLASS="COMMAND"
>ROLLBACK</TT
> is the
   equivalent standard SQL command.
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62413"
></A
><H2
>See Also</H2
><A
HREF="sql-begin.html"
>BEGIN</A
>, <A
HREF="sql-commit.html"
>COMMIT</A
>, <A
HREF="sql-rollback.html"
>ROLLBACK</A
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