题解 | 窗口函数方法
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
with t as(select
de.dept_no,
de.emp_no,
s.salary,
max(s.salary) over (partition by de.dept_no) as maxSalary
from
dept_emp de
left join salaries s on de.emp_no = s.emp_no)
select dept_no,emp_no,maxSalary from t where salary=maxSalary;
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