题解 | #获取每个部门中当前员工薪水最高的相关信息#
获取每个部门中当前员工薪水最高的相关信息
https://www.nowcoder.com/practice/4a052e3e1df5435880d4353eb18a91c6
select dept_no,emp_no,salary
from(
select dept_no,emp_no,salary,max(salary)over(partition by dept_no) maxSalary
from dept_emp left join salaries using(emp_no)
where dept_emp.to_date="9999-01-01"
)t1
where salary = maxSalary
窗口查出部门最大，外层再筛选
