[코드카타] SQL 41 Classes More Than 5 Students

[코드카타] SQL 41 Classes More Than 5 Students

41. Classes More Than 5 Students

Write a solution to find all the classes that have at least five students.
Return the result table in any order.

Select class
From Courses
group by class
having count(class) >= 5

having절을 활용한 조건 추가 설정