Re: Oracle NULL vs '' revisited

From: DA Morgan <damorgan_at_psoug.org>
Date: Sat, 25 Aug 2007 10:24:47 -0700
Message-ID: <1188062684.57348@bubbleator.drizzle.com>

Tony Rogerson wrote:

>> If it CAN change it is NOT a key. That is the definition. Let me give
>> you an example.

>
> That's just Oracle speek in the Oracle environment because your
> candidate key cannot be changed -> http://orafaq.com/node/24.

No that is university level database speak for students studying the work of Date, Codd, and Celko.

Where did you receive your degree in computer science?

-- 
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 Aug 25 2007 - 12:24:47 CDT