Re: What is the difference between UNIQUE and PRIMARY KEY?

From: Steve Long <steven.long_at_erols.com>
Date: Wed, 11 Apr 2001 18:12:23 -0400
Message-ID: <9b2l11$eb8$1@bob.news.rcn.net>

a unique key may contain null values, a primary key may not.

<u518615722_at_spawnkill.ip-mobilphone.net> wrote in message news:l.987022508.1940429687@[198.138.198.252]...
> I searched against metalink and could not find the
> definition of unique index, could somebody help
> me out?
>
> Thanks
>
>
>
>
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Received on Wed Apr 11 2001 - 17:12:23 CDT