SELECT
    O.CUST_CODE AS CODE,
    CUST_NAME AS NAME,
    COUNT(ORDER_NO) AS CNT,
    SUM(ORDER_AMNT) AS TTL_AMT,
    ROUND(AVG(ORDER_AMNT),0) AS AVG_AMT
FROM
    ORDERS AS O
    INNER JOIN CUSTOMER AS C
        ON O.CUST_CODE=C.CUST_CODE
WHERE
    ORDER_DATE BETWEEN '2023-09-01' AND '2023-09-30'
GROUP BY
    O.CUST_CODE
ORDER BY
    CNT DESC, AVG_AMT DESC, CODE ASC
LIMIT
    5
;