🔗 https://school.programmers.co.kr/learn/courses/30/lessons/59404
SELECT I.NAME, I.DATETIME
FROM ANIMAL_INS AS I
WHERE I.ANIMAL_ID NOT IN (SELECT ANIMAL_ID FROM ANIMAL_OUTS)
ORDER BY I.DATETIME LIMIT 3🔗 https://school.programmers.co.kr/learn/courses/30/lessons/59404
SELECT I.NAME, I.DATETIME
FROM ANIMAL_INS AS I
WHERE I.ANIMAL_ID NOT IN (SELECT ANIMAL_ID FROM ANIMAL_OUTS)
ORDER BY I.DATETIME LIMIT 3