| ERROR | file header is corrupt for datafile string | 
| CAUSE | ORACLE detected a corruption in the file header. A media failure has probably occurred. | 
| ACTION | RESTORE the datafile to a new location, then do a SWITCH, and then retry the RECOVER command. | 
| ERROR | file header is corrupt for datafile string | 
| CAUSE | ORACLE detected a corruption in the file header. A media failure has probably occurred. | 
| ACTION | RESTORE the datafile to a new location, then do a SWITCH, and then retry the RECOVER command. |