On 27/11/2016 17:36, Zorro wrote:
Can't you use an ordinary join ?Something like Select x.* From x, y Where x.a = y.a And x.b = y.b
That would work if I wanted all (a,b) from X where (a,b) occurs in Y; unfortunately what I want is all (a,b) from X where (a,b) DOES NOT occur in Y.
-- John English
