题解 | #查找在职员工自入职以来的薪水涨幅情况#
查找在职员工自入职以来的薪水涨幅情况
http://www.nowcoder.com/practice/fc7344ece7294b9e98401826b94c6ea5
很简洁的代码
select distinct a.emp_no as emp_no,(max_salary-min_salary) as growth
from (select emp_no,max(salary) over (partition by emp_no order by salary) as max_salary,to_date from salaries) a
join (select emp_no,min(salary) over (partition by emp_no order by salary) as min_salary,to_date from salaries) b
on a.emp_no=b.emp_no
where a.to_date = '9999-01-01' order by growth
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