[프로그래머스] 동명 동물 수 찾기 (Oracle)

문제

https://school.programmers.co.kr/learn/courses/30/lessons/59041

프로그래머스

 

SELECT NAME, COUNT(NAME) AS COUNT
FROM ANIMAL_INS
WHERE NAME IS NOT NULL
GROUP BY NAME
HAVING COUNT(NAME) >= 2
ORDER BY NAME
;