Re: A Normalization Question
From: Jan Hidders <jan.hidders_at_REMOVETHIS.pandora.be>
Date: Fri, 09 Jul 2004 21:56:28 GMT
Message-ID: <gwEHc.180913$bg.8762417_at_phobos.telenet-ops.be>
>
> ITYM "can remove it".
Date: Fri, 09 Jul 2004 21:56:28 GMT
Message-ID: <gwEHc.180913$bg.8762417_at_phobos.telenet-ops.be>
Chris Hoess wrote:
> In article <gMzHc.180582$Q%4.8677405_at_phobos.telenet-ops.be>, Jan Hidders wrote:
>
>>Marshall Spight wrote: >> >>>You keep treating redundancy and normalization as if >>>they were the same things; they're not. >> >>Well, the term "redundancy" has a pretty well-specified meaning in >>normalization theory. The informal version of that definition is as follows: >> >>"A certain part of that data structure is said to be redundant if you >>cannot remove it without losing information."
>
> ITYM "can remove it".
Oops, Yes I did. Thank you.
> Anyway, Neo appears to be insistent on defining
> normalization as "some process on the database which removes redundancy";
> unfortunately, such a definition makes it virtually impossible to make
> general statements about "normalization" above and beyond the definition
> itself.
Well, I would argue that this depends upon your definition of redundancy.
- Jan Hidders