[SQL] 프로그래머스_입양 시각 구하기(1)_59412

DATE_FORMAT 이용하여 시각 출력하기

SELECT DATE_FORMAT(컬럼명, '%H');

 

https://school.programmers.co.kr/learn/courses/30/lessons/59412

프로그래머스

 

 

SELECT 
    DATE_FORMAT(DATETIME,'%H') HOUR, 
    COUNT(DATETIME) COUNT
FROM ANIMAL_OUTS 
GROUP BY HOUR
HAVING HOUR >= 9 AND HOUR < 20
ORDER BY HOUR;