프로그래머스 SQL 문제풀이(Oracle)/SQL LV3(Oracle)
즐겨찾기가 가장 많은 식당 정보 출력하기
빛하루
2023. 9. 2. 16:48
SELECT B.FOOD_TYPE, B.REST_ID, B.REST_NAME, B.FAVORITES
FROM (SELECT FOOD_TYPE, MAX(FAVORITES) AS FAVORITES
FROM REST_INFO
GROUP BY FOOD_TYPE) A, REST_INFO B
WHERE A.FOOD_TYPE = B.FOOD_TYPE
AND
A.FAVORITES = B.FAVORITES
ORDER BY A.FOOD_TYPE DESC;