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