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Primary-key ... alternate key ... (newbie question)

From: <joske_at_home>
Date: Thu, 03 Oct 2002 19:10:16 GMT
Message-ID: <sC0n9.144230$8o4.21399@afrodite.telenet-ops.be> 





Hi to all,




In many normalisation articles, they sometimes mention to mark the alternate
key's.



Why is it important to 'mark' these? Where are they used during the
normalisation-steps?



If you choose for a certain combination of attributes as a primary key, does
the other attributes, (that are part of the alternate key), influence the
normalisation process?



Regards,


Jos
Received on Thu Oct 03 2002 - 14:10:16 CDT












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