Here is my problem:
I have two tables, each table contains ten unique letters.
How can I compare the two tables to give me the number of matches?
eg table 1 has:
q, w, e, r, t, y, u, i, o, p
and table 2 has:
z, t, q, g, j, a, u, s, r, m
The answer I need is: 4
I don't need to know which...