题解 | 获取每个部门中薪水最高的员工相关信息
select dept_no
,emp_no
,salary
from(select dept_no
,emp_no
,salary
,rank()over(partition by dept_no order by salary desc) rk
from dept_emp d join salaries using(emp_no)) t
where rk = 1
order by dept_no
select dept_no
,emp_no
,salary
from(select dept_no
,emp_no
,salary
,rank()over(partition by dept_no order by salary desc) rk
from dept_emp d join salaries using(emp_no)) t
where rk = 1
order by dept_no
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