[프로그래머스] 자동차 대여 기록에서 장기/단기 대여 구분하기

https://school.programmers.co.kr/learn/courses/30/lessons/151138

프로그래머스

SELECT
    HISTORY_ID,
    CAR_ID,
    DATE_FORMAT(START_DATE, "%Y-%m-%d") AS START_DATE,
    DATE_FORMAT(END_DATE, "%Y-%m-%d") AS END_DATE,
CASE
    WHEN DATEDIFF(END_DATE, START_DATE) < 29 then '단기 대여' 
    ELSE '장기 대여' 
    END AS RENT_TYPE
FROM CAR_RENTAL_COMPANY_RENTAL_HISTORY
WHERE START_DATE LIKE '2022-09-%'
ORDER BY HISTORY_ID DESC;

 

알아야 할 점

- CASE

- DATEDIFF