[Programmers SQL 고득점 Kit] SUM, MAX, MIN [4/4] 중복 제거하기

문제 link
https://programmers.co.kr/learn/courses/30/lessons/59408

Code link
https://github.com/JamesJung01/programmers_sql_kit/blob/main/02_SUM%2CMAX%2CMIN/SUM%2CMAX%2CMIN-4.sql

SELECT COUNT(DISTINCT NAME) AS count
FROM ANIMAL_INS;