Re: Curious SQL question

On Jan 6, 7:45 am, "Walt" <wami..._at_verizon.net> wrote:
> No problem. Even if you got rid of all the cranks, they'd just come back
> with electric starters.

I see what you did there.

> Here's the way I see it:
>
> 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?

MINUS(A, B) = XOR(UNION(A, B), B) but that could just be the hangover talking.

Marshall Received on Sat Jan 06 2007 - 18:21:30 CET