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Description
💬 문제
https://school.programmers.co.kr/learn/courses/30/lessons/59038
💬 Idea
- 시간의 최솟값을 구해서 조건으로 걸어준다.
💬 풀이
SELECT DATETIME AS 시간
FROM ANIMAL_INS
WHERE DATETIME = (SELECT MIN(DATETIME) FROM ANIMAL_INS)