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, sa.emp_no, salary
from dept_emp de join salaries sa on de.emp_no = sa.emp_no
where sa.to_date = '9999-01-01'
and (dept_no,salary) in(
select dept_no,max(salary) from dept_emp de join salaries sa on de.emp_no = sa.emp_no
group by dept_no
)
order by dept_no
新思路，查找速度提升20%
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