https://programmers.co.kr/learn/courses/30/lessons/59414
SELECT ANIMAL_ID, NAME, DATE_FORMAT(DATETIME, '%Y-%m-%d') AS '날짜' FROM ANIMAL_INS ORDER BY ANIMAL_ID;
DATE_FORMAT
두자리 년도-월-일 형식 FORMAT
SELECT ANIMAL_ID, NAME, DATE_FORMAT(DATETIME, '%y-%m-%d') AS '날짜'
네 자리 년도-월-일 형식 FORMATSELECT ANIMAL_ID, NAME, DATE_FORMAT(DATETIME, '%Y-%m-%d') AS '날짜'