/**
  * 불확실한 오류가 있는지 체크한다.
  *
  * @param massmailID
  * @param testmassmailID
  * @return
  * @throws DataAccessException
  */
 public int selectCountNotKnow(int massmailID, int scheduleID) {
   int result = 0;
   try {
     result = massmailStatisticDAO.selectCountNotKnow(massmailID, scheduleID);
   } catch (Exception e) {
     logger.error(e);
   }
   return result;
 }