I apologize in advance for this is a repeat question from several days ago. I have a report of a multi-table query that I would like to group by table 1's indexed field, medical record number, but sort (alphabetize) by the patient's last name. When I group and sort by last then first name, the one-to-many relationship of the index, medical record number, does not hold true with table 2's diagnoses with the same last name grouped under only the first of those patients (i.e. Betty and Carla Smith's diagnoses are group under Alice Smith's name.) The creation of an expression with both last and first name is better but is not accurate if two patients have the same last name. Any suggestions?