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 a.emp_no,max(a.salary) as salary,b.last_name,b.first_name from salaries a left join employees b on a.emp_no=b.emp_no where a.salary<(select max(salary) from salaries)
两次取最大值