>Thank you...
>
>But ...how should I close my database ?...What the CLOSE DATABASES command is supposed to do with the file .DBC ?...What do you do when you need to close a database ?

Well, CLOSE DATA ALL should work, in theory. Also, try SET DATA TO Mydbc and then CLOSE DATA. I've found CLOSE DATA doesn't work well unless you do this. Also CLEAR ALL or CLOSE TABLES ALL/CLOSE DATA ALL may work (although these may not be satisfactory at runtime :)

In addition, DBCs may not close properly if there is something unresolved or hidden (buffering, data session, etc.) - but these are only ideas posed in the other thread...

Maybe do a VALID DATA RECOV on your problem DBC, too, just to ensure it's okay...