| ERROR | the control file is older than datafile string |
| CAUSE | The control file appears to be older than the specified datafile, but it is not marked as a backup control file. This indicates that the control file has been replaced with an older version. This error does not occur when a backup control file which was created via Recovery Manager or the ALTER DATABASE BACKUP CONTROLFILE command is restored because such control files are marked as backups. |
| ACTION | RESTORE a control file and perform RECOVER DATABASE. |