[프로그래머스 SQL 고득점 Kit] GROUP BY: 조건에 맞는 사용자와 총 거래금액 조회하기

🤔문제

정답

SELECT B.USER_ID	,B.NICKNAME	,SUM(A.PRICE) AS TOTAL_SALES
FROM USED_GOODS_BOARD A
JOIN USED_GOODS_USER B ON A.WRITER_ID = B.USER_ID
WHERE A.STATUS = 'DONE'
GROUP BY B.USER_ID
HAVING TOTAL_SALES >= 700000
ORDER BY TOTAL_SALES