코딩테스트/lv2

[프로그래머스 코딩테스트] oracle Lv.2 자동차 평균 대여 기간 구하기

chantleman 2024. 10. 18. 15:50

SELECT CAR_ID,	to_char(round(avg(END_DATE-START_DATE+1),1),'FM9990.0') as AVERAGE_DURATION
from CAR_RENTAL_COMPANY_RENTAL_HISTORY 
group by CAR_ID
having round(avg(END_DATE-START_DATE+1),1)  >=7
order by round(avg(END_DATE-START_DATE+1),1) desc, car_id desc;