[프로그래머스 SQL 고득점 kit(oracle)] JOIN - 있었는데요 없었습니다(level3)

https://programmers.co.kr/learn/courses/30/lessons/59043

프로그래머스

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SELECT I.ANIMAL_ID, I.NAME
FROM ANIMAL_INS I
JOIN ANIMAL_OUTS O
ON I.ANIMAL_ID = O.ANIMAL_ID
WHERE I.DATETIME >= O.DATETIME
ORDER BY I.DATETIME;