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Message Posted: Fri, 01 Jul 2011 @ 14:56:40 GMT

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Subj:   Re: Multiset with a UPI
From:   Kartik Gulati1

John_Wight wrote:

  A Multiset table with a unique constraint (i.e. UPI or USI) will be the same as a SET table with a unique constraint - i.e. No duplicate row check. If you have a Multiset table, why would you apply a unique constraint? Maybe there is a good reason but (to date) I have not identified any - but would be humbled to know if there was!!!  

Hello John,

When I worked over at one of the GE accounts, it was a mandate to only use Multiset Tables. It was strongly recommended by consultants from Teradata. So if we had to build a UPI we would build it over Multiset tables so yes you can find Multiset tables with UPI there :)



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