[Programmers] 상품 별 오프라인 매출 구하기 - 131533

Group By로 묶어서 판매액 연산을 할 때는 양을 SUM 해줘야 한다!!

 

Question

 

PRODUCT 테이블과 OFFLINE_SALE 테이블에서 상품코드 별 매출액(판매가 * 판매량) 합계를 출력하는 SQL문을 작성해주세요. 결과는 매출액을 기준으로 내림차순 정렬해주시고 매출액이 같다면 상품코드를 기준으로 오름차순 정렬해주세요.

 

 

Point

 

• SUM(SALES_AMOUNT) * PRICE AS SALES

 

Code (After 25.06.)

 

SELECT PRODUCT_CODE
        , SUM(PRICE * SALES_AMOUNT) AS SALES
FROM PRODUCT P
JOIN OFFLINE_SALE S ON P.PRODUCT_ID = S.PRODUCT_ID

GROUP BY 1
ORDER BY 2 DESC, 1

 

Code

 

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

 

ME NOW

 

On my Github