I have a huge table of progress notes that track who created the progress note, the date and time of the progress note and the client the progress note was written for. The problem is that some of the clients have overlapping progress notes for the same date and time, sometimes by the same staff person and sometimes by a different staff person. I need to be able to identify what progress notes have overlapping date and time entries for the same client. For instance, if a staff person create a note for Client A for 12/05/05 from 7 a.m. to 10 a.m. and then, for some reason, entered a second progress note for Client A for 12/05/05 from 9 a.m. to 11:00 a.m., I need to identify so it can be corrected. I've consolidated the records by Client, Staff Member and date and time. Now I need to contrast the records for each client and find the overlaps. Help!