We shut down the database, copy dbf, ctl and log files (i.e. a complete cold backup), and generate a backup control file from the database (alter database command), and copy all the archived logs generated since the cold backup was taken. We use the “recover database using the backup control file” command and then open with a resetlogs. The procedure only fails if we bring up the database before initiating a recovery, permitting UNDO to be generated. Regards.