Hi, I tried the following DELETE-Statement DELETE FROM MWStAnzeige WHERE BDatum<AnfangsDatum BDatum and AnfangsDatum are fields in MWStAnzeige. Is it possible that this is not allowed to do? I thought that the syntax is okay!! bye Claudius -- G4/733 QS / MacOS X 10.2.3 / RB 4.5.2de / Valentina 1.9.6