Hello. Apologies if this is an old problem.

I'm using DCOUNT to count a subset of records in a table, and it's doing
exactly what I want, but now I want to count only the records with a unique
value in one of the columns. Like -

A B C D
1 Date Account
2 01-Oct 123
3 02-Oct 456
4 03-Oct 123
5 03-Oct 456
6 04-Oct 789
7
8 Date Date Account
9 =02-Oct <=03-Oct =DCOUNT(A1:B6,,A8:C9)

I want to get D9 to show me 2 instead of 3. I assume there is nothing I can
put in C9 to make DCOUNT work that way, so I expect if it's possible it
would have to be done differently. That's fine as long as that will give me
the unique count for a subset of the data (as defined for DCOUNT by the text
in A9 and B9).

Any ideas? Thanks!