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Virtual table as reference data for IN_REFERENCE_COLUMN chec

Posted: Mon Jun 22, 2015 11:29 pm
by U
Is it possible to use an IA virtual table (a three-way join of source data tables) to provide the reference column for an IN_REFERENCE_COLUMN check?

Would the performance of such an approach be better than, or worse than, doing the same join in a view in the source database (which happens to be Netezza)?

Thank you again for your time.