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.\" Title: ROLLBACK
.\" Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\" Date: 2017-11-06
.\" Manual: PostgreSQL 9.2.24 Documentation
.\" Source: PostgreSQL 9.2.24
.\" Language: English
.\"
.TH "ROLLBACK" "7" "2017-11-06" "PostgreSQL 9.2.24" "PostgreSQL 9.2.24 Documentation"
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.SH "NAME"
ROLLBACK \- abort the current transaction
.\" ROLLBACK
.SH "SYNOPSIS"
.sp
.nf
ROLLBACK [ WORK | TRANSACTION ]
.fi
.SH "DESCRIPTION"
.PP
\fBROLLBACK\fR
rolls back the current transaction and causes all the updates made by the transaction to be discarded\&.
.SH "PARAMETERS"
.PP
WORK, TRANSACTION
.RS 4
Optional key words\&. They have no effect\&.
.RE
.SH "NOTES"
.PP
Use
\fBCOMMIT\fR(7)
to successfully terminate a transaction\&.
.PP
Issuing
\fBROLLBACK\fR
when not inside a transaction does no harm, but it will provoke a warning message\&.
.SH "EXAMPLES"
.PP
To abort all changes:
.sp
.if n \{\
.RS 4
.\}
.nf
ROLLBACK;
.fi
.if n \{\
.RE
.\}
.SH "COMPATIBILITY"
.PP
The SQL standard only specifies the two forms
ROLLBACK
and
ROLLBACK WORK\&. Otherwise, this command is fully conforming\&.
.SH "SEE ALSO"
\fBBEGIN\fR(7), \fBCOMMIT\fR(7), ROLLBACK TO SAVEPOINT (\fBROLLBACK_TO_SAVEPOINT\fR(7))
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