如何根据我的日期时间范围计算总小时数
如果我有这个接受的日期范围 2015-09-07 06:00:00 - 2015-09-11 22:00:00
我只想获取用户每天从 06:00:00 到 22:00:00 的小时数，然后对所有小时数求和。
这是我的示例数据
+----+---------+--+---------------------+---------------------+--+
| | | | | | |
+----+---------+--+---------------------+---------------------+--+
| id | user_id | | start_time | end_time | |
| 1 | 24 | | 2015-09-07 07:10:01 | 2015-09-07 10:20:20 | |
| 2 | 24 | | 2015-09-07 12:10:00 | 2015-09-07 15:00:00 | |
| 3 | 24 | | 2015-09-07 16:00:00 | 2015-09-07 22:20:20 | |
| 4 | 24 | | 2015-09-07 23:25:20 | 2015-09-08 05:00:00 | |
+----+---------+--+---------------------+---------------------+--+
提前谢谢你。
最佳答案
简单地使用函数 TIMESTAMPDIFF 几个小时:
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_timestampdiff
示例:
SELECT TIMESTAMPDIFF(HOUR, start_time, end_time)
as `difference` FROM timeattendance WHERE user_id = 24
关于mysql - 如何获得日期时间范围的总小时数，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33232976/