Re: Definition Needed: "proper superkey"

From: David Portas <REMOVE_BEFORE_REPLYING_dportas_at_acm.org>
Date: Thu, 24 Jul 2008 06:59:30 +0100
Message-ID: <aNSdnTFOKavchxXVnZ2dneKdnZydnZ2d@giganews.com>


"Gene Wirchenko" <genew_at_ocis.net> wrote in message news:84kf84heanobbme2i559073ik72oodkkm5_at_4ax.com...
> I can not find a definition for "proper superkey". I have found
> "superkey", but not "proper superkey".
>
> Sincerely,
>
> Gene Wirchenko
>
> Computerese Irregular Verb Conjugation:
> I have preferences.
> You have biases.
> He/She has prejudices.

"A superkey that does not have the irreducibility property; i.e., a proper superset of a key."

  • The Relational Database Dictionary
-- 
David Portas
Received on Thu Jul 24 2008 - 00:59:30 CDT

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