On 5/3/01, 2:29:09 AM, GH <grasshacker@over-yonder.net> wrote regarding
Re: [GENERAL] Unique or Primary Key?:
> Just to expand on Eric's response, a Primary Key directive creates a
> unique not null column, whereas a unique column can be null. In this
> instance, your columns are already not null, so, as Eric responded, it
is
> basically the same thing.
OK. I was just worried that there might be some more subtle issues
regarding query/index optimisation.
Besides, I couldn't see much use in creating it as a primary key. How
would I ever reference it from another table?
--
Bruce
