대여 횟수가 많은 자동차들의 월별 대여 횟수 구하기

문제

코드

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

 

출처: 프로그래머스 코딩 테스트 연습, https://school.programmers.co.kr/learn/courses/30/lessons/151139