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Re: combined Primary key's ... newbie

From: --CELKO-- <71062.1056_at_compuserve.com>
Date: 26 Sep 2001 14:54:59 -0700
Message-ID: <c0d87ec0.0109261354.406fbec2@posting.google.com> 





>> I've normalised my documents and ended up with a lot of compound

primary


key's (up to 4) in my tables.  They contains more foreign key's than
actual data. <<



That can happen and it is fine.  



If you add a single column dummy key, you would still have to have
uniqueness constraints on the present keys, then you would have to
validate the dummy key against the natural key.  You will probably get
faster joins, but the database will get corrupted.
Received on Wed Sep 26 2001 - 16:54:59 CDT












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