题解 | #获取当前薪水第二多的员工的emp_no以及其对应的薪水salary#
获取当前薪水第二多的员工的emp_no以及其对应的薪水salary
http://www.nowcoder.com/practice/c1472daba75d4635b7f8540b837cc719
select s.emp_no, s.salary, e.last_name, e.first_name
from salaries s join employees e
on s.emp_no = e.emp_no
where s.salary =
(
select s1.salary
from salaries s1 join salaries s2
on s1.to_date = '9999-01-01' and s2.to_date = '9999-01-01'
where s1.salary <= s2.salary
group by s1.salary
having count(distinct s2.salary) = 2
)
and s.to_date = '9999-01-01'真大牛思路
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