Frans - you blew me away today because when I initially created my database, I decided to try naming them all hungarian case table names, but later decided I hated it. So, I went through and renamed all with underscores. I was dreading all the errors I would get when I refreshed the catalog - but was pleasantly surprised. It actually figured out that I had renamed the entities and remapped things accordingly! Brilliant! Do you stored the obj_id somehow and map to that?

During a refresh it tries to find back the tables based on PK and field layout. This normally does the trick . It sometimes can go wrong if there are two tables with equal layout and same names of fields. It then might pick the wrong table. In 1.0.2005.1 you can opt for a dialog to manually correct the mappings

NickD wrote:

...Brilliant!...

Nick: You're not only now figuring that out... are you?

Jeff