March 2003
Intermediate to advanced
656 pages
39h 30m
English
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Name
rollback
Synopsis
x.rollback( )
Rolls back the current transaction in
the database. If the database does not support transactions,
x
.rollback( ) raises an
exception. The DBAPI recommends, but does not mandate, that for
databases that do not support transactions class
Connection supplies no rollback
method, so that x
.rollback( ) raises AttributeError. You can test
whether transaction support is present with
hasattr(
x
,'rollback').
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.