Re: How long is long enough for primary key ?

From: DA Morgan <damorgan_at_psoug.org>
Date: Sat, 07 Oct 2006 15:37:18 -0700
Message-ID: <1160260635.282264@bubbleator.drizzle.com>

David Portas wrote:

> DA Morgan wrote:

>> No. But it is rather hard to photocopy Codd's books and post them here.
>>
>> Perhaps you'd prefer one of these instead:
>> http://www.cdf.toronto.edu/~boconnel/434/normalization.txt
>> http://www.devx.com/ibm/Article/20859
>> http://www.cs.jcu.edu.au/Subjects/cp1500/1998/Lecture_Notes/normalisation/2nf.html
>> http://www.utexas.edu/its/windows/database/datamodeling/rm/rm7.html
>>
>> I've got a couple of hundred more if these similarly produce fits of
>> laughter.

> 
> 
> But none of those sources supports your assertion about composite
> primary keys. They all contradict you!

You misunderstood the meaning of the phrase "composite primary key."

Each and every one is in agreement.

They all say the exact same thing. Just using different words.

My apology if the original quote was confusing.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org

Received on Sat Oct 07 2006 - 17:37:18 CDT