Look for identical values in 3 seperate databases

Hi,

I work in a public health organisation.
We have a number of databases where each different workfield is stored in that particulair database.
I made a report with 3 tables, representing the postal codes and adresses
of these databases.

I want to make a new table containing the postal codes and addresses
that correspond in 2 or more of the forementioned tables.

How can this be done?


tantetruus (BOB member since 2008-11-11)