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 t1.emp_no,(t1.salary-t2.salary) as growth
from (
select s.emp_no,s.salary
from salaries s
where s.to_date='9999-01-01'
)t1
join (
select s.emp_no,s.salary
from salaries s
join employees e on e.emp_no=s.emp_no
where s.from_date=e.hire_date
)t2
on t1.emp_no=t2.emp_no
order by growth
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