Re: Identifying candidate keys and primary keys

From: Brian Selzer <>
Date: Thu, 17 Apr 2008 01:05:35 -0400
Message-ID: <zUANj.8569$>

"rpost" <> wrote in message news:9bf14$48063060$839b4533$
> Brian Selzer wrote:
>>Unless you can identify the functional dependencies, you won't be able to
>>identify the candidate keys. If you don't know enough about the subject
>>matter (or weren't provided with that information as part of the
>>assignment), then you might as well join Bluto.
> Perhaps they want the student to write these assumptions down explicitly.
> Perhaps they want to make the student realize that without such explicit
> assumptions the validity of the model cannot be determined.

Speculating about assumptions seems too much like work to me. It's bad enough having clients who don't know what they want--just that they want it NOW! Maybe this assignment is designed to expose students to what they can expect when they graduate--sort of a 'weed out the feint hearted' exercise.

Brian Received on Thu Apr 17 2008 - 07:05:35 CEST

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