I have two tables: patients and visits. A layout in the visits table gives a sub-summary report of the kinds of visits and actions performed over a given period. I need to find the actual number or unique or distinct patients based on the found set of visits (as one patient could have been visited more than once in a period). A Summary field of the Count variety works in the patients table, but is useless in the visits table.
Help please! (for a good non-profit cause)