Re: unique index implications

From: Red Valsen <red_valsen@yahoo.com> > >Does a unique index mean that no nulls are allowed in the columns for >that index? How can this be so if null is by definition undefined and >has no equivalence? *One* null is allowed in a unique index. That's because you can't be sure a null isn't equal to another...IIRC. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com