[Programmers] 입양 시각 구하기(1)

문제

이미지 클릭시, 문제로 이동됩니닷 :)

풀이

SELECT 
    DATE_FORMAT(DATETIME, '%H') AS HOUR, 
    COUNT(*) AS COUNT
FROM 
    ANIMAL_OUTS
WHERE 
    DATE_FORMAT(DATETIME, '%H') >= '09' AND DATE_FORMAT(DATETIME, '%H') <= '20'
GROUP BY HOUR
ORDER BY HOUR;