SELECT
    ITEM_CODE AS CODE,
    ITEM_NAME AS NAME,
    MAX(UNITPRICE) * SUM(ORDER_QTY) AS TOTAL_AMT
FROM
    ORDERS_DTL
INNER JOIN
    ORDERS USING (ORDER_NO)
INNER JOIN
    ITEM USING (ITEM_CODE)
WHERE
    ORDER_DATE BETWEEN '2023-05-14' AND '2023-05-20'
GROUP BY
    ITEM_CODE
ORDER BY
    TOTAL_AMT DESC,
    CODE DESC
LIMIT
    5
;