题解 | #统计各岗位员工平均工作时长#
统计各岗位员工平均工作时长
https://www.nowcoder.com/practice/b7220791a95a4cd092801069aefa1cae
select post,
avg(timestampdiff(minute,first_clockin,last_clockin)/60) as work_hours
from staff_tb a
right join attendent_tb b on a.staff_id=b.staff_id
where first_clockin is not null and last_clockin is not null
group by post
order by work_hours desc
投递华为等公司10个岗位 >
