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Re: Relational Algebra Dilemma - Urgent.

From: Jim Kennedy <kennedy-family_at_attbi.com>
Date: Fri, 10 May 2002 01:36:11 GMT
Message-ID: <fuFC8.6976$UV4.251@rwcrnsc54>


Please explain why this is URGENT. I don't see where someone's life is at stake or the fate of Western Civilization. Jim
"Sted Alana" <Sted_Alana_at_hotmail.com> wrote in message news:3cda1610_1_at_news.iprimus.com.au...
> 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
>
>
>
>
>
>
Received on Thu May 09 2002 - 20:36:11 CDT

Original text of this message

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