Query:
SELECT salesman_no, COUNT(order_no) as MAX_Sale, MAX(order_no) as MAX_O_No FROM order_t5 GROUP BY salesman_no;
Output:
SALESM MAX_SALE MAX_O_ ------ ---------- ------ s00001 1 o00001 s00002 1 o00002 s00003 1 o00003 s00004 1 o00004
