SELECT
    SUBSTR(LOGIN_DATETIME, 1, 10) AS FIRST_LOGIN
    , COUNT(*) AS MEMBER_CNT
FROM
    ACCESS_LOG 
WHERE
    LOGIN_DATETIME BETWEEN '2023-08-01' AND '2023-08-31'
    AND MEMBER_CODE IN (SELECT DISTINCT MEMBER_CODE FROM ACCESS_LOG ORDER BY ACCESS_ID)
GROUP BY 
    SUBSTR(LOGIN_DATETIME, 1, 10)
ORDER BY
    FIRST_LOGIN DESC;