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 e.emp_no,s3.salary,last_name,first_name from
employees e join salaries s3 on e.emp_no=s3.emp_no
where
(select count(distinct s1.salary)
from salaries s1
where s3.salary<=s1.salary
group by s3.salary
)=2
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