[MySQL] 프로그래머스 - 물고기 종류 별 잡은 수 구하기

https://school.programmers.co.kr/learn/courses/30/lessons/293257

프로그래머스

 

문제

FISH_NAME_INFO에서 물고기의 종류 별 물고기의 이름과 잡은 수를 출력하는 SQL문을 작성해주세요. 물고기의 이름 컬럼명은 FISH_NAME, 잡은 수 컬럼명은 FISH_COUNT로 해주세요. 결과는 잡은 수 기준으로 내림차순 정렬해주세요.

 

풀이

SELECT COUNT(FISH_TYPE) FISH_COUNT, FISH_NAME 
FROM FISH_INFO JOIN FISH_NAME_INFO USING(FISH_TYPE)
GROUP BY FISH_TYPE, FISH_NAME
ORDER BY COUNT(FISH_TYPE) DESC