access how to find duplicate fields in another table
Finding Duplicate Records. An even more common need is to find duplicates in a table. Perhaps you want to know how many duplicate names there are in the table so you can begin to clean up your data. To do so, create a normal Access Select Query containing the field with duplicate information. The change the query to be an Aggregate Query by clicking the Totals icon in the ribbon. Add one more field, any will do, and then set that field to be Count.. This will give you a count of records that match the name.