SQL16 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
描述
有一个员工职称表titles简况如下:
![](https://img2020.cnblogs.com/blog/1786811/202110/1786811-20211001165446225-1631880665.png)
有一个薪水表salaries简况如下:
请你统计出各个title类型对应的员工薪水对应的平均工资avg。结果给出title以及平均工资avg,并且以avg升序排序,以上例子输出如下:
SELECT t.title, AVG(salary) AS avg FROM titles as t INNER JOIN salaries as s ON t.emp_no=s.emp_no AND t.to_date='9999-01-01' AND s.to_date='9999-01-01' GROUP BY t.title ORDER BY avg