MySQL Forums
Forum List  »  Triggers

Advanced Search
New Topic

Re: Triggers can not use reference to tables?
Posted by: Jay Pipes
Date: June 27, 2005 11:14PM

No, not really. NEW and OLD represent the original (OLD) and modified/inserted (NEW) data for the current *record* being operated upon.

This means that you can refer to the NEW.column or OLD.column to check the old versus new values, but you can't SELECT from them (since they're not really tables.)

Make sense?

Jay Pipes
Community Relations Manager, North America, MySQL Inc.

Got Cluster? http://www.mysql.com/cluster
Personal: http://jpipes.com

Navigate: Previous Message• Next Message
Options: Reply• Quote


Subject
Views
Written By
Posted
Triggers can not use reference to tables?
4109
Chagh
June 25, 2005 04:36AM
Re: Triggers can not use reference to tables?
2494
Mike Kruckenberg
June 25, 2005 08:29AM
Re: Triggers can not use reference to tables?
2548
Paul McArdle
June 26, 2005 10:41PM
Re: Triggers can not use reference to tables?
2548
Jay Pipes
June 26, 2005 11:28PM
Re: Triggers can not use reference to tables?
2567
Paul McArdle
June 27, 2005 11:25PM
Re: Triggers can not use reference to tables?
2735
Chagh
June 27, 2005 11:04PM
Re: Triggers can not use reference to tables?
2845
Jay Pipes
June 27, 2005 11:14PM
Re: Triggers can not use reference to tables?
2701
Jay Pipes
June 27, 2005 11:16PM
Re: Triggers can not use reference to tables?
2553
Chagh
June 28, 2005 12:37AM
Re: Triggers can not use reference to tables?
2854
Jay Pipes
June 28, 2005 09:31AM
Re: Triggers can not use reference to tables?
2533
Chagh
June 28, 2005 11:20PM


Sorry, you can't reply to this topic. It has been closed.

Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not necessarily represent the opinion of Oracle or any other party.