I have a database consisting of 3 tables. First is a contact list of names, address, etc. Second is a list of individual marketing campaigns. The third is a table for multiple to multiple between the contacts and campaigns.The purpose for the database is to track history of mailing campaigns to contacts.
I have an excel file of names, addresses which may already be in the database and need to add the latest marketing campaign to each of the names that match in the excel file to the database. Help please!