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Re: candidate keys in abstract parent relations

From: Frostillicus <frosty_at_nilspamos.iinet.net.au>
Date: Thu, 19 Jan 2006 20:47:16 +1100
Message-ID: <43cf6037$0$23583$5a62ac22@per-qv1-newsreader-01.iinet.net.au> 





Could you, perhaps, define the primary key as the catalogue number, title, 
release date, and record label together? If that isn't sufficient to handle 
all possible permutations, then surely there has got to be another piece of 
data that could be lumped in with the primary key. The country of release as 
well, maybe. 
Received on Thu Jan 19 2006 - 03:47:16 CST












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