1. you have many records that have a date field

2. you want to find out how many different dates are in this recordset

3. if you have created an empty "column" or field in the

underlying table, is this the same value as the count of

days?

4. What is the underlying table, the new table you're trying to

populate with the filtered data for your report?

If you answer these and supply the calculation that you're using I'll probably be able to supply you with the sufficient code and/or simply a sufficient query to use for your report