:eek: I have an order database via Access 2000, the backend became corrupted. I ran a a software program to recover the data. It recovered the data, but the autonumber was changed to just number and it removed primary key setting to the same field. I created a duplicate table, then ran an append query from the old table to the new one. The autonumber works, but I get the following error when I define the Primary Key and try to save...
"The changes you requested to the table were not successful, because they would create duplicate values in the index, primary key or relationship. " I cannot find any duplicates, and there is no relationships. Any suggestions? THANKS in advance for your help. Cathi

FIXED! I just deleted all the data out of the new table, set the primary key, then ran the append query again. Thanks ! ;)