| ERROR | a backup control file must be restored to recover datafile string |
| CAUSE | The control file currently mounted by the target database contains a newer incarnation of the datafile than the recovery catalog indicates is appropriate for the Point-in-Time being recovered to. |
| ACTION | Restore the control file, using the same UNTIL clause specified on the failing RECOVER command, then reissue the command. If no control file can be restored, then you should issue a CREATE CONTROLFILE command. |