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Message Posted: Thu, 24 Jan 2008 @ 13:13:24 GMT


     
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Subj:   Re: Confusing of the 'NOT LIKE' logic
 
From:   Mike Felts

The logical opposite of (A OR B) is NOT A AND NOT B, so that part you have down. However, if url_txt is NULL then I don't believe it will return with NOT LIKE. NULL mixes alot of people up. NULL is neither logically LIKE A nor NOT LIKE A. I'm guessing that the remainder of the records are made up with records with NULL url_txt.


Mike



     
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