Re: Curious SQL question
From: Lennart <Erik.Lennart.Jonsson_at_gmail.com>
Date: 6 Jan 2007 09:49:26 -0800
Message-ID: <1168105766.201717.136400_at_s80g2000cwa.googlegroups.com>
Date: 6 Jan 2007 09:49:26 -0800
Message-ID: <1168105766.201717.136400_at_s80g2000cwa.googlegroups.com>
Walt wrote:
[...]
>
> XOR (A,B) = MINUS ( UNION (A,B), INTERSECTION (A,B))
>
> Is this true? Is it a working definition?
> Can it be transformed so that
> MINUS is defined in terms of XOR, UNION, and INTERSECTION?
>
/Lennart Received on Sat Jan 06 2007 - 18:49:26 CET