ORA-39315
        Cannot drop the first data file from a permanent or undo tablespace.
        
        
        Cause
        DBMS_METADATA_DIFF was comparing two permanent or undo tablespaces. The first data file in the first tablespace is missing from the second tablespace. There is no SQL ALTER statement to drop the first data file from a permanent or undo tablespace.
        Action
        The difference cannot be eliminated with an SQL ALTER statement.
        
     
    
    
        ORA-39315
        Cannot drop the first data file from a permanent or undo tablespace.
        
        
        Cause
        DBMS_METADATA_DIFF was comparing two permanent or undo tablespaces. The first data file in the first tablespace is missing from the second tablespace. There is no SQL ALTER statement to drop the first data file from a permanent or undo tablespace.
        Action
        The difference cannot be eliminated with an SQL ALTER statement.
        
     
    
    
        ORA-39315
        Cannot drop the first data file from a permanent or undo tablespace.
        
        
        Cause
        DBMS_METADATA_DIFF was comparing two permanent or undo tablespaces. The first data file in the first tablespace is missing from the second tablespace. There is no SQL ALTER statement to drop the first data file from a permanent or undo tablespace.
        Action
        The difference cannot be eliminated with an SQL ALTER statement.