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  3. April 2008

Referential Integrity Constraints may enhance performance!

RI Constraints may help performance! Even if you've already built the
appropriate keys in a relationship like a key on item number in your item
master, and a the appropriate keys in your order header, if you have a RI
constraint defined between these two files, and often join them, the
optimizer really likes the information provided by a RI constraint.

I'll take any bullet I can to encourage people to start using constraints.

Rob Berendt

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