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
https://www.nowcoder.com/practice/fc7344ece7294b9e98401826b94c6ea5
select s1.emp_no, sum(s2.salary - s1.salary) growth from salaries s1 join salaries s2 on s1.emp_no = s2.emp_no and s1.to_date = s2.from_date where s1.emp_no in (select emp_no from salaries group by emp_no having max(to_date)='9999-01-01') group by s1.emp_no order by growth
