https://programmers.co.kr/learn/courses/30/lessons/59044
SELECT A.NAME, A.DATETIME FROM ANIMAL_INS A lEFT JOIN ANIMAL_OUTS B ON A.ANIMAL_ID = B.ANIMAL_ID WHERE B.ANIMAL_ID IS NULL ORDER BY A.DATETIME LIMIT 3
Limit 연산자
ex) 데이터 10개 추출 (rownum 1~10)
SELECT name FROM section LIMIT 10;
ex) 데이터 11부터 10개 추출 (rownum 11~20)
SELECT name FROM section LIMIT 11,10;