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Message Posted: Wed, 31 Oct 2001 @ 16:42:21 GMT


     
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Subj:   Re: NULL vs NOT NULL - PERFORMANCE ISSUES
 
From:   Paul Johnson

The ANSI standard to a subquery containing nulls on either side is a null response. I believe Teradata works in this way even in Teradata mode. It was changed to work this way a few releases ago, maybe at the end of the V1 era?

Beware nullable columns in subquerys!

Paul Johnson.



     
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