题解 | #统计出当前各个title类型对应的员工当前薪水对应的平均工资#
统计出当前各个title类型对应的员工当前薪水对应的平均工资
http://www.nowcoder.com/practice/c8652e9e5a354b879e2a244200f1eaae
select t.title,avg(s.salary)
from titles as t
inner join salaries as s
on t.emp_no = s.emp_no
group by title
order by avg(s.salary) asc;
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