[Programmers][SQL] 없어진 기록 찾기 (59042번) - MySQL Solution

문제

• https://programmers.co.kr/learn/courses/30/lessons/59042

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Solution

SELECT OUTS.ANIMAL_ID, OUTS.NAME
FROM ANIMAL_OUTS AS OUTS LEFT JOIN ANIMAL_INS AS INS ON OUTS.ANIMAL_ID = INS.ANIMAL_ID
WHERE INS.ANIMAL_ID IS NULL
ORDER BY OUTS.ANIMAL_ID