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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

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Triggers can not use reference to tables?
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Chagh
June 25, 2005 04:36AM
Re: Triggers can not use reference to tables?
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Mike Kruckenberg
June 25, 2005 08:29AM
Re: Triggers can not use reference to tables?
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Paul McArdle
June 26, 2005 10:41PM
Re: Triggers can not use reference to tables?
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Jay Pipes
June 26, 2005 11:28PM
Re: Triggers can not use reference to tables?
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Paul McArdle
June 27, 2005 11:25PM
Re: Triggers can not use reference to tables?
2587
Chagh
June 27, 2005 11:04PM
Re: Triggers can not use reference to tables?
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Jay Pipes
June 27, 2005 11:14PM
Re: Triggers can not use reference to tables?
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Jay Pipes
June 27, 2005 11:16PM
Re: Triggers can not use reference to tables?
2396
Chagh
June 28, 2005 12:37AM
Re: Triggers can not use reference to tables?
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Jay Pipes
June 28, 2005 09:31AM
Re: Triggers can not use reference to tables?
2387
Chagh
June 28, 2005 11:20PM


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