Re: Foreign superkey support
From: Jon Heggland <jon.heggland_at_idi.ntnu.no>
Date: Tue, 08 Aug 2006 07:18:48 +0200
Message-ID: <eb96ur$mo$1_at_orkan.itea.ntnu.no>
Date: Tue, 08 Aug 2006 07:18:48 +0200
Message-ID: <eb96ur$mo$1_at_orkan.itea.ntnu.no>
Bob Badour wrote:
> It occurs to me a superkey reference implies something less than 3rd
> normal form because any attributes over and above the irreducible key
> will be functionally dependent on the foreign key.
> Why include them in the referencing relation at all?
-- JonReceived on Tue Aug 08 2006 - 07:18:48 CEST