SELECT
  O.CUST_CODE AS CODE
, C.CUST_NAME AS NAME
, COUNT(DISTINCT ORDER_DATE) AS CNT
FROM
  ORDERS AS O
INNER JOIN
  CUSTOMER AS C
  ON O.CUST_CODE = C.CUST_CODE
WHERE
  ORDER_DATE BETWEEN '2023-07-01' AND '2023-07-31'
GROUP BY
  O.CUST_CODE, C.CUST_NAME
ORDER BY
  CNT DESC, CODE DESC