获取当前薪水第二多的员工的emp_no及对应薪水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
https://www.nowcoder.com/practice/8d2c290cc4e24403b98ca82ce45d04db
#法一:窗口函数,先排名,再选出第二的 select emp_no ,salary from ( select emp_no ,salary,rank()over(order by salary desc) rk from salaries )a where rk=2 #法2:找出第二高的薪水,再筛选 select emp_no,salary from salaries where salary = (select salary from salaries order by salary desc limit 1,1)