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
http://www.nowcoder.com/practice/4a052e3e1df5435880d4353eb18a91c6
SELECT
t.dept_no, t.emp_no, t.salary
FROM
(SELECT
row_number() over(partition by d.dept_no order by s.salary desc) as row_num,
d.dept_no,d.emp_no,s.salary
FROM
dept_emp d
INNER JOIN
salaries s
ON
d.emp_no = s.emp_no) as t
GROUP BY
t.dept_no
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