SELECT
*
FROM MEMBER_PROFILE
INNER JOIN REST_REVIEW ON MEMBER_PROFILE.MEMBER_ID=REST_REVIEW.MEMBER_ID
WHERE MEMBER_PROFILE.MEMBER_ID = (
SELECT MEMBER_ID
FROM REST_REVIEW
GROUP BY MEMBER_ID
ORDER BY COUNT(*) DESC
→ COUNT 다수 내림차순
LIMIT 1
→ 갯수 표기
)