Re: Relation Schemata vs. Relation Variables

From: paul c <toledobythesea_at_oohay.ac>
Date: Thu, 24 Aug 2006 23:01:04 GMT
Message-ID: <QcqHg.452359$Mn5.245886_at_pd7tw3no>

paul c wrote:
...
>
> PMFJI, I would say that the VALUE of a candidate key identifies one and
> only one tuple FOREVER!

Stupid me, I have to take part of that back - the value of a candidate key obviously could identify several tuples but I still think that would hold forever. Might have been better to say the value of a candidate key identifies a tuple regardless of time.

p Received on Fri Aug 25 2006 - 01:01:04 CEST

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