SELECT
    o.CUST_CODE AS CODE
    , c.CUST_NAME AS NAME
    , COUNT(*) AS CNT
FROM
    ORDERS o
    LEFT JOIN CUSTOMER c ON o.CUST_CODE = c.CUST_CODE
WHERE
    ORDER_DATE BETWEEN '2023-07-01' AND '2023-07-31'
GROUP BY
    CODE
ORDER BY
    CNT DESC
    , CODE DESC;