Re: Relational Algebra Dilemma - Urgent.

Sted Alana wrote:

> Hi,
>
> Im trying to convert an SQL query into relational form, but I am stuck when
> trying to write WHERE EXISTS in relational.
>
> I know that 'WHERE NOT EXISTS' is simply written as a minus sign (-).
>
> Any help appreciated.
>
> --
> N e w s N e t C u s t o m e r
> E - m a i l : sted.alana_at_hotmail.com

Huh? A minus sign? When? Where? ;-)

Are you talking Oracle or SQL Server? or some other implementation of some other computer language?

Please clarify including product and version you are converting from and to.

Daniel Morgan Received on Thu May 09 2002 - 10:37:00 CDT