Re: Examples of SQL anomalies?

From: Marshall <marshall.spight_at_gmail.com>
Date: Thu, 3 Jul 2008 08:50:42 -0700 (PDT)
Message-ID: <e7c035e2-f942-4615-b99d-afcf37383180@r37g2000prm.googlegroups.com>


On Jul 3, 8:31 am, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
> Marshall wrote:
> > On Jul 3, 7:21 am, Bob Badour <bbad..._at_pei.sympatico.ca> wrote:
>
> Exactly. A data type comprises two sets: a set of values and a set of
> operations defined using those values. A value then is simply a member
> of a set which has operations defined over the set.

It suddenly occurs to me that what you describe is pretty much exactly an "algebraic structure" in abstract algebra.

http://en.wikipedia.org/wiki/Algebraic_structure

> > Do you have a definition for "information"?
>
> What's wrong with the ISO 2382 definition? It's the first definition in
> the standard.

What's wrong with it is that I can't remember it.

Marshall Received on Thu Jul 03 2008 - 10:50:42 CDT

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