| ERROR | recover block operand string cannot be used to recover datafile | 
| CAUSE | The specified operand could not be used with RECOVER datafile command. | 
| ACTION | Delete the invalid operand and retry the command. | 
| ERROR | recover block operand string cannot be used to recover datafile | 
| CAUSE | The specified operand could not be used with RECOVER datafile command. | 
| ACTION | Delete the invalid operand and retry the command. |