Count records where two fields have distinct values

[SanchezNuñez]

Good afternoon,

I am looking for a way to  count in a layer how many records have two fields distinct, and show  the result in a text box. 

Thanks

[SanchezNuñez]

This is what I need if I use a SQL Statement:

SELECT distinct
[ProjectNumber]
,[ProjectPage]
FROM ProjecTables



And the count will be

SELECT COUNT(*)
FROM (
SELECT distinct
[ProjectNumber]
,[ProjectPage]
FROM ProjecTables
) as dt

Please advise