SELECT
 EO.ORDER_DATETIME AS ORDER_DATE,
 EO.MEMBER_CODE AS CODE,
 CASE MM.OPTOUT_TYPE WHEN 0 THEN '可' WHEN 1 THEN '不可' ELSE '不明'  END AS OPTOUT
FROM
(
SELECT
 DISTINCT EO2.ORDER_DATETIME,
          EO2.MEMBER_CODE
FROM EC_ORDERS AS EO1
INNER JOIN 
(
SELECT
 MIN(ORDER_DATETIME) AS ORDER_DATETIME,
 MEMBER_CODE
FROM
 EC_ORDERS
WHERE 
 ORDER_DATETIME BETWEEN '2023-07-01' AND '2023-07-31'
GROUP BY MEMBER_CODE
) AS EO2
ON EO1.MEMBER_CODE = EO2.MEMBER_CODE AND EO1.ORDER_DATETIME <= DATETIME(EO2.ORDER_DATETIME, '+1 YEARS')
) AS EO
INNER JOIN MEMBER_MST AS MM
ON EO.MEMBER_CODE = MM.MEMBER_CODE
ORDER BY EO.ORDER_DATETIME DESC, EO.MEMBER_CODE DESC