Re: Curious SQL question
From: Lennart <Erik.Lennart.Jonsson_at_gmail.com>
Date: 6 Jan 2007 09:47:51 -0800
Message-ID: <1168105671.732196.161730_at_38g2000cwa.googlegroups.com>
Date: 6 Jan 2007 09:47:51 -0800
Message-ID: <1168105671.732196.161730_at_38g2000cwa.googlegroups.com>
{ x | x belongs to A XOR x belongs to B }
For the record, I don't understand the purpose of giving well defined
operations new names, that at best will be confusing in its new
context.
> Can it be transformed so that
Why not go all the way, XOR, OR and AND :-). Hmm, I cant come up with
an expression for this without using NOT. Either its not possible, or
I'm to stupid. I suspect the latter.
/Lennart
Received on Sat Jan 06 2007 - 18:47:51 CET
> MINUS is defined in terms of XOR, UNION, and INTERSECTION?
>