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Eliminating WHERE clauses with NOT
Message
De
04/11/2014 11:46:09
Marcia Akins
Arkansas, États-Unis
 
 
À
04/11/2014 10:59:28
Michel Fournier
Level Extreme Inc.
Petit-Rocher, Nouveau-Brunswick, Canada
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Syntaxe SQL
Titre:
Re: Eliminating WHERE clauses with NOT
Versions des environnements
SQL Server:
SQL Server 2012
Application:
Web
Divers
Thread ID:
01610458
Message ID:
01610469
Vues:
46
This message has been marked as a message which has helped to the initial question of the thread.
I just do not understand how this provides the same result set. I see it is. It is just a question of knowing how can this be the same.

This should help explain it to you:

http://en.wikipedia.org/wiki/De_Morgan's_laws
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