Posted by Chris.Cheney on 08/19/07 07:45

Erland Sommarskog <esquel@sommarskog.se> wrote in
news:Xns9990ED010F0E2Yazorman@127.0.0.1:

> You may be used to using IN / NOT IN for this, but (NOT) IN is limited,
> as you get problem if you have a multi-column key. Plus that NOT IN
> can trap you if NULL values are involved.

Erland,

Could you elaborate on this or point me to an appropriate web page, please.

TIA

Chris

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