mysql计算每天两个日期/时间之间的秒数[重复]

This question already has an answer here:

这个问题在这里已有答案：

• MySQL: how to get the difference between two timestamps in seconds 4 answers
• MySQL：如何获得两个时间戳之间的差异，以秒为单位4个答案

I have this table but I am helpless how to calculate seconds for each separate day from this table:

我有这张桌子，但我很无奈如何从这张桌子计算每一天的秒数：

id  from            to
---------------------------------------------------
1   2013-01-31 23:50:00 2013-02-02 09:00:00
2   2013-02-05 11:21:12 2013-02-08 01:01:01
3   2013-02-08 17:33:44 2013-02-08 18:22:55
4   2013-02-12 01:40:12 2013-02-12 02:00:59
5   2013-02-28 01:40:12 2013-03-02 02:00:59

Now I need to gain number of seconds for each day in february between from and to. so for 1st Feb - x seconds, 2nd Feb - y seconds, 3rd Feb - 0 seconds, etc. Any idea how should I do it? Many thanks.

现在我需要在2月到之间每天获得秒数。所以对于2月1日 - x秒，2月2日 - y秒，2月3日 - 0秒等等。任何想法我应该怎么做？非常感谢。

1 个解决方案

#1

Use TIMESTAMPDIFF MySQL.

使用TIMESTAMPDIFF MySQL。

SELECT TIMESTAMPDIFF(SECOND,from,to); 

Example:

例：

SELECT TIMESTAMPDIFF(SECOND,'2016-01-01 00:00:00','2016-01-11 00:00:00'); -- 864000
SELECT TIMESTAMPDIFF(MINUTE,'2016-01-01 00:00:00','2016-01-11 00:00:00'); -- 14400
SELECT TIMESTAMPDIFF(HOUR,'2016-01-01 00:00:00','2016-01-11 00:00:00'); -- 240
SELECT TIMESTAMPDIFF(DAY,'2016-01-01 00:00:00','2016-01-11 00:00:00'); -- 10