Re: Normalization and DBMS

From: Leandro Guimarães Faria Corsetti Dutra <leandro_at_dutra.fastmail.fm>
Date: Wed, 12 May 2004 12:33:32 -0300
Message-ID: <pan.2004.05.12.15.33.32.950178@dutra.fastmail.fm>

Em Wed, 12 May 2004 09:08:37 -0500, Dawn M. Wolthuis escreveu:

>> See how you want to have it both ways.  You want to 'withstand [...]
>> requirement changes', but also a less powerful, more complex, less
>> flexible structure.

>
> Could you point me to any experiments that would yield such a conclusion
> of graphs being "less powerful, more complex, less flexible structure"?

What about 50 years of data processing practice?

The relational model was created precisely because former systems were -- and unfortunately still are -- a failure in power, simplicity and flexibility.

Also it wins by Okham's razor: it is the simplest one to use (elements, operators) yet imposes no arbitrary restrictions.

>> This is trivial.  Even SQL does it right.

>
> Not if is isn't specified.

Obvious points' expression should generally be avoided.

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Received on Wed May 12 2004 - 10:33:32 CDT