题解 | #查找排除当前最大、最小salary之后的员工的平均工资avg_salary#
查找排除当前最大、最小salary之后的员工的平均工资avg_salary
http://www.nowcoder.com/practice/95078e5e1fba4438b85d9f11240bc591
1.分析
三个条件依次写出。
2.代码
select avg(salary) as avg_salary from salaries where to_date = '9999-01-01' and salary not in (select max(salary) from salaries where to_date = '9999-01-01') and salary not in (select min(salary) from salaries where to_date = '9999-01-01')
