ORA-19638
        Datafile file# string is not current enough to apply the incremental backup
        
        
        Cause
        The datafile checkpoint is earlier than the incremental backup start SCN. Applying this backup may lead to data loss for changes made in that gap.
        Action
        Provide a backup set that can be applied and retry the operation.
        
     
    
    
        ORA-19638
        file string is not current enough to apply this incremental backup
        
        
        Cause
        The checkpoint of the target for this incremental backup is less than the start of the incremental backup.  If this backup were applied, then any changes made between the datafile checkpoint and the start of the incremental backup could be lost.
        Action
        Supply a backup set that can be applied and retry the operation.
        
     
    
    
        ORA-19638
        Datafile file# string is not current enough to apply the incremental backup
        
        
        Cause
        The datafile checkpoint is earlier than the incremental backup start SCN. Applying this backup may lead to data loss for changes made in that gap.
        Action
        Provide a backup set that can be applied and retry the operation.