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Re: Primary Key/Unique Key?

From: Alan Shein <alanshein_at_erols.com>
Date: Tue, 7 Dec 1999 12:30:51 -0500
Message-ID: <82jg83$klv$1@autumn.news.rcn.net>


A Primary Key is Unique and Not Null.
A Unique "key" can be Null, and it is not really a Key.

Dave <none_at_nowhere.nothere.oops> wrote in message news:82ip3r$cuv$1_at_lure.pipex.net...
> Whats the difference between making something
> a primary key and making something a unique key.
> From Oracles point of view that is.
> Dave
>
>
>
Received on Tue Dec 07 1999 - 11:30:51 CST

Original text of this message

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