[Programmers SQL 고득점 Kit] JOIN [2/4] 있었는데요 없었습니다

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

Code link
https://github.com/JamesJung01/programmers_sql_kit/blob/main/05_JOIN/JOIN-2.sql

SELECT INS.ANIMAL_ID, INS.NAME
FROM ANIMAL_INS AS INS
JOIN ANIMAL_OUTS AS OUTS
ON INS.ANIMAL_ID = OUTS.ANIMAL_ID
WHERE OUTS.DATETIME < INS.DATETIME
ORDER BY INS.DATETIME