Re: Basic Q on superfluous primary keys

[Greg Smith <gsmith(at)gregsmith(dot)com>]

On Wed, 18 Apr 2007, Richard Huxton wrote:

> And at the end of the day that's the root of the problem. It's easy to be 
> lulled into "well it looks like a primary key" rather than being able to 
> guarantee it.

In some of these cases it is guaranteed to be a primary key given all 
available information at the time.  The funny thing about unexpected 
changes to a business model is that you never expect them.

--
* Greg Smith gsmith(at)gregsmith(dot)com http://www.gregsmith.com Baltimore, MD