[Programmers/Oracle] Level 4 - 그룹별 조건에 맞는 식당 목록 출력하기

✔️ Question

 

https://school.programmers.co.kr/learn/courses/30/lessons/131124

프로그래머스

MEMBER_PROFILE와 REST_REVIEW 테이블에서 리뷰를 가장 많이 작성한 회원의 리뷰들을 조회하는 SQL문을 작성해주세요. 회원 이름, 리뷰 텍스트, 리뷰 작성일이 출력되도록 작성해주시고, 결과는 리뷰 작성일을 기준으로 오름차순, 리뷰 작성일이 같다면 리뷰 텍스트를 기준으로 오름차순 정렬해주세요.

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👨‍💻 Solution

-- 코드를 입력하세요
SELECT A.MEMBER_NAME, B.REVIEW_TEXT, TO_CHAR(B.REVIEW_DATE, 'YYYY-MM-DD') REVIEW_DATE
FROM MEMBER_PROFILE A
JOIN REST_REVIEW B
ON A.MEMBER_ID = B.MEMBER_ID
WHERE A.MEMBER_ID = (SELECT MEMBER_ID
                    FROM REST_REVIEW
                    GROUP BY MEMBER_ID
                    HAVING COUNT(*) = (SELECT MAX(COUNT(*))
                                      FROM REST_REVIEW
                                      GROUP BY MEMBER_ID))
ORDER BY 3, 2;