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Re: How to ensure only one of two sets of optional information?

From: Marshall Spight <mspight_at_dnai.com>
Date: Fri, 19 Dec 2003 23:05:15 GMT
Message-ID: <LuLEb.433965$ao4.1386198@attbi_s51>


"Bob Badour" <bbadour_at_golden.net> wrote in message news:2eqdncRHpMdvHH6i4p2dnA_at_golden.net...

>

> SQL has little support for anything really useful, but I think a constant
> value should be a relatively simple check constraint. What are the chances
> that any dbms out there has sufficient physical independence to avoid
> storing the constant for every row?

Heh heh. I was thinking the same thought.

Marshall Received on Fri Dec 19 2003 - 17:05:15 CST

Original text of this message

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