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Join / Union

Started by kado, 01 Jul 2009 02:02:57 PM

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kado

Any idea why Cognos only allows you to join (or union) 2 queries at a time? I can't figure it out and am curious.

-thanks-

Suraj

You can UNION as many queries as you want. Only JOIN is limited to two at a time. I think it is to reduce sql complexity and incorrect data aggregation.