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Message Posted: Mon, 24 Feb 2003 @ 18:48:34 GMT


     
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Subj:   Re: Couting duplicate rows thru multi load
 
From:   Dwight Etheridge

My experience has been that the writing of that UV table may be performed on a row-by-row basis, not in a block fashion. So it may be slow.

Why not multiload the 25 million to a multiset staging table. Then use SQL and grouping to find the duplicates and non-duplicates. At least you stay with parallel operations.

Dwight Etheridge
Teradata Certified Master



     
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