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Message Posted: Wed, 05 May 2004 @ 19:02:58 GMT


     
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Subj:   Collect Stats on Indexes versus Multi-Column
 
From:   Claybourne Barrineau

All,

Assuming:

     TableA
     ColA
     ColB
     ColC
     ColD
     UPI = ColA
     Index (ColB, ColC)

Are the following 2 statements equivalent to the RDBMS?

1)Collect Stats on TableA Index (ColB, ColC);

2)Collect Stats on TableB Column (ColB, ColC);


From an 'Explain' point of view, they look identical.


Thanks,

Clay



     
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