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Home -> Community -> Usenet -> comp.databases.theory -> Re: DB required to list multiple D.I.V.O.R.C.E.S. & Re-marriages

Re: DB required to list multiple D.I.V.O.R.C.E.S. & Re-marriages

From: <paul.vernon_at_ukk.ibmm.comm>
Date: Fri, 21 Dec 2001 11:16:07 +0000
Message-ID: <9vv8be$pjc$1@sp15at20.hursley.ibm.com> 







CHECK (marriage_date <= divorce_date  OR divorce_date IS NULL),

                                     ^^^^^^^^^^^^^^^^^^^^^^



Don't you just love NULLs



Regards

Paul Vernon 





P.S.  If this gets sent in HTML, I appologise. My News reader doesn't always do what I say, but it will soon be brought to task.
Received on Fri Dec 21 2001 - 05:16:07 CST












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