[Programmers Lv.4] 우유와 요거트가 담긴 장바구니 - 62284

Question

 

데이터 분석 팀에서는 우유(Milk)와 요거트(Yogurt)를 동시에 구입한 장바구니가 있는지 알아보려 합니다. 우유와 요거트를 동시에 구입한 장바구니의 아이디를 조회하는 SQL 문을 작성해주세요. 이때 결과는 장바구니의 아이디 순으로 나와야 합니다.

 

Code (After 25.06.)

 

SELECT DISTINCT CART_ID
FROM CART_PRODUCTS
WHERE CART_ID IN (SELECT DISTINCT CART_ID
                    FROM CART_PRODUCTS
                    WHERE NAME = 'Milk')
        AND NAME = 'Yogurt'
ORDER BY 1

 

Code (After)

 

SELECT DISTINCT CART_ID
FROM CART_PRODUCTS
WHERE NAME RLIKE 'Milk|Yogurt'
GROUP BY CART_ID
HAVING COUNT(DISTINCT NAME) = 2
ORDER BY 1

 

Code (Before)

 

SELECT CART_ID
    FROM (SELECT CART_ID
            FROM CART_PRODUCTS
            GROUP BY CART_ID, NAME
            HAVING NAME REGEXP 'Milk|Yogurt') AS S
    GROUP BY CART_ID
      HAVING COUNT(CART_ID) = 2

 

now me

On my github