SELECT a.salesman_id, name, ord_no, 'highest on', ord_date FROM salesman a, orders b WHERE a.salesman_id =b.salesman_id AND b.purch_amt= (SELECT MAX (purch_amt) FROM orders c WHERE c.ord_date = b.ord_date) UNION (SELECT a.salesman_id, name, ord_no, 'lowest on', ord_date FROM salesman a, orders b WHERE a.salesman_id =b.salesman_id AND b.purch_amt= (SELECT MIN (purch_amt) FROM orders c WHERE c.ord_date = b.ord_date)) ORDER BY 3