ORA-28555
        pass-through SQL: required parameter missing or NULL
        
        
        Cause
        An attempt was made to pass a NULL value to a non-NULL parameter.
        Action
        Use a non-NULL value for the parameter.
        
     
    
    
        ORA-28555
        pass-through SQL: required parameter missing or NULL
        
        
        Cause
        An attempt was made to pass a NULL value to a non-NULL parameter.
        Action
        Use a non-NULL value for the parameter.
        
     
    
    
        ORA-28555
        pass-through SQL: required parameter missing or NULL
        
        
        Cause
        An attempt was made to pass a NULL value to a non-NULL parameter.
        Action
        Use a non-NULL value for the parameter.