[PGS] 상품 별 오프라인 매출 구하기

문제

예제

내 풀이

SELECT P.PRODUCT_CODE, SUM(P.PRICE * O.SALES_AMOUNT) AS SALES
FROM PRODUCT P JOIN OFFLINE_SALE O ON P.PRODUCT_ID = O.PRODUCT_ID
GROUP BY P.PRODUCT_CODE
ORDER BY SUM(P.PRICE * O.SALES_AMOUNT) DESC, PRODUCT_CODE;