[SQL 고득점 Kit / GROUP BY ] Level 2 - 입양 시각 구하기(1)

문제

성공 코드

SELECT HOUR(DATETIME) AS HOUR, COUNT(ANIMAL_ID) AS COUNT
FROM ANIMAL_OUTS
WHERE HOUR(DATETIME) BETWEEN 9 AND 19
GROUP BY HOUR(DATETIME)
ORDER BY HOUR(DATETIME);