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Message Posted: Tue, 16 Nov 2010 @ 20:51:41 GMT


     
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Subj:   The use of * vs 1
 
From:   Faible Mou

Hi,

Would I get any performance improvement if I change

     Select count(*) ...

to

     Select count(1) ...

for tables that have many many columns?

How about

"if exist Select * from ..." vs "if exist Select 1 from ..."


Thanks

FM



     
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