DECLARE
  CURSOR C_EMP IS
  SELECT FIRST_NAME FROM EMPLOYEES
  WHERE DEPARTMENT_ID = &DEPT_ID;
  VAR_EMP_NAME EMPLOYEES.FIRST_NAME%TYPE
BEGIN
 OPEN C_EMP;
 LOOP
   FETCH C_EMP INTO VAR_EMP_NAME;
   EXIT WHEN C_EMP%NOTFOUND;
   IF
     :<BLOCK_NAME>.<ITEM_NAME> <> VAR_EMP_NAME THEN
     MESSAGE('NAME IS DIFFERENT.');
    ELSE
     NULL;
    END IF;
   END LOOP;
END;
/