on 12/10/07 12:15 PM, Thomas-Carsten.Franke@xxxxxxxxx purportedly said: > To work around this I add an dbCon.rollBack() after select statement > above in good and in bad times. After that ALTER works. > Can someone explain me why I need this rollback ? You only need the rollback when the SELECT statement fails. When an error occurs within a transaction, the transaction is aborted but not rolled back. There are likely reasons why the rollback isn't automatic, but I don't know them. Your choice is either to run the commands in an "autocommit" mode or, as you are doing, rollback (or commit, if there was no error) after the SELECT. Best, Keary Suska Esoteritech, Inc. "Demystifying technology for your home or business" ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
