Re: Normalization
- From: Peter Robson <pgro@xxxxxxxxx>
- To: Paul Baumgartel <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 29 Jul 2004 16:50:53 +0100
Outrageous! And this person TAUGHT???
In line...
PB> Q: What are the basic guidelines one should keep in mind while
PB> designing a database? Is denormalization always good?
PB> A: I used to teach database design in graduate school, and your
PB> question is excellent! The main purpose of high normalization was the
PB> reduction of disk space, back when it mattered in the 1970s.
Absolute utter rubbish - doesn't understand what normalisation is.
Doesn't understand what a 'data model' is.
PB> Today, I always introduce redundancy into the model whenever it can
PB> eliminate an SQL join, but not always. I make my decision based on two
PB> criteria:
PB> 1 ? The size of the redundant item
PB> 2 ? The volatility of the item (e.g. how often do I need to duplicate
PB> updates)
Oh please - cannot cope with any more of this nonsense....
Hmmm, it might be interesting to know who it was - then perhaps
ignorance is bliss...
peter
edinburgh
PB> =====
PB> Paul Baumgartel
PB> Transcentive, Inc.
PB> www.transcentive.com
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