hi
can any one show the example of combined query.
in that i want the result of query 1 minus query 2 for following example
eg: query 1 query 2
a c
b d
c z
what is the answer for query 1 - query 2 and query 2 -query 1?
ans: Q 1 -Q 2= a,b
Q2 - Q 1=d,z
am i right?
bobj4041 (BOB member since 2014-02-05)