[프로그래머스 SQL] 조회수가 가장 많은 중고거래 게시판의 첨부파일 조회하기

https://school.programmers.co.kr/learn/courses/30/lessons/164671

프로그래머스

 

 

SELECT CONCAT('/home/grep/src/',A.BOARD_ID,'/', B.FILE_ID, B.FILE_NAME, B.FILE_EXT) AS FILE_PATH
FROM USED_GOODS_FILE AS B
RIGHT JOIN 
    (SELECT BOARD_ID FROM USED_GOODS_BOARD 
    ORDER BY VIEWS DESC LIMIT 1) AS A
ON A.BOARD_ID = B.BOARD_ID
ORDER BY B.FILE_ID DESC;