首页 > 代码库 > 184. Department Highest Salary (medium)
184. Department Highest Salary (medium)
Source: https://leetcode.com/problems/department-highest-salary/#/description
Description:
The Employee table holds all employees. Every employee has an Id, a salary, and there is also a column for the department Id.
+----+-------+--------+--------------+ | Id | Name | Salary | DepartmentId | +----+-------+--------+--------------+ | 1 | Joe | 70000 | 1 | | 2 | Henry | 80000 | 2 | | 3 | Sam | 60000 | 2 | | 4 | Max | 90000 | 1 | +----+-------+--------+--------------+
The Department table holds all departments of the company.
+----+----------+ | Id | Name | +----+----------+ | 1 | IT | | 2 | Sales | +----+----------+
Write a SQL query to find employees who have the highest salary in each of the departments. For the above tables, Max has the highest salary in the IT department and Henry has the highest salary in the Sales department.
+------------+----------+--------+ | Department | Employee | Salary | +------------+----------+--------+ | IT | Max | 90000 | | Sales | Henry | 80000 | +------------+----------+--------+
Solution:
select distinct t2.name as department, t1.employee, t1.salary from ( SELECT e1.name as employee, e1.salary as salary,e1.departmentid from (selEct * from Employee ) e1 inner JOIN (select departmentid,max(salary) as salary from Employee group by departmentid) e2 on e1.departmentid = e2.departmentid and e1.salary = e2.salary )t1 inner JOIN (select * from Department) t2 on t1.departmentid = t2.id
184. Department Highest Salary (medium)
声明:以上内容来自用户投稿及互联网公开渠道收集整理发布,本网站不拥有所有权,未作人工编辑处理,也不承担相关法律责任,若内容有误或涉及侵权可进行投诉: 投诉/举报 工作人员会在5个工作日内联系你,一经查实,本站将立刻删除涉嫌侵权内容。