[프로그래머스/SQL] Lv 3. 대여 횟수가 많은 자동차들의 월별 대여 횟수 구하기

⭐ 문제 링크

https://school.programmers.co.kr/learn/courses/30/lessons/151139

프로그래머스

 

 

⭐ 풀이 코드

SELECT MONTH(START_DATE) AS MONTH, CAR_ID, COUNT(CAR_ID) AS RECORDS
FROM CAR_RENTAL_COMPANY_RENTAL_HISTORY
WHERE CAR_ID IN (SELECT CAR_ID
                 FROM CAR_RENTAL_COMPANY_RENTAL_HISTORY
                 WHERE START_DATE BETWEEN '2022-08-01' AND '2022-10-31'
                 GROUP BY CAR_ID
                 HAVING COUNT(*) >= 5)
      AND START_DATE BETWEEN '2022-08-01' AND '2022-10-31'
GROUP BY MONTH, CAR_ID
ORDER BY MONTH, CAR_ID DESC

✅ START_DATE BETWEEN '2022-08-01' AND '2022-10-31'

"2022-08-01" <= START_DATE AND START_DATE <= "2022-10-31" 으로 바꿔서 실행 가능 !