#Leetcode# 596. Classes More Than 5 Students
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https://leetcode.com/problems/classes-more-than-5-students/
There is a table courses
with columns: student and class
Please list out all classes which have more than or equal to 5 students.
For example, the table:
+---------+------------+ | student | class | +---------+------------+ | A | Math | | B | English | | C | Math | | D | Biology | | E | Math | | F | Computer | | G | Math | | H | Math | | I | Math | +---------+------------+
Should output:
+---------+ | class | +---------+ | Math | +---------+
Note:
The students should not be counted duplicate in each course.
代码:
# Write your mysql query statement below SELECT class FROM Courses GROUP BY class Having Count(distinct student)>=5
FH
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LeetCode 596. Classes More Than 5 Students (超过5名学生的课)