I have Microsoft Access 2003. I have a simple database consisting of 2 tables, linked by 2 fields. When I originally set up the tables, I did not enforce referential integrity. When I try to do so now, it tells me that it cannot do it because data (in one of the tables) violates the referential integrity rules. I would like to create a query that says "give me all the values of CD.Programs.CD_Tiltle that don't exists in CD_List.CD_Title" (I'll need another if that doesn't find the problem, but, given this example, I expect I can figure out the other one myself.) How do I do that? Thx for all your help. Peter ************************************************************* You are receiving this mail because you subscribed to mso@xxxxxxxxxxxxx or MicrosoftOffice@xxxxxxxxxxxxxxx. To send mail to the group, simply address it to mso@xxxxxxxxxxxxx To Unsubscribe from this group, visit the group's homepage and use the dropdown menu at the top. This will allow you to unsubscribe your email address or change your email settings to digest or vacation (no mail). //www.freelists.org/webpage/mso To be able to share files with the group, you must join our Yahoo sister group. This group will not allow for posting of emails, but will allow you to join and share problem files, templates, etc.: http://tech.groups.yahoo.com/group/MicrosoftOffice . This group is for FILE SHARING ONLY. If you are using Outlook and you see a lot of unnecessary code in your email messages, read these instructions that explain why and how to fix it: http://personal-computer-tutor.com/abc3/v28/greg28.htm *************************************************************