组间mysql查询间隔15分钟 [英] Group mysql query by 15 min intervals
本文介绍了组间mysql查询间隔15分钟的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
解决方案
SELECT ROUND(UNIX_TIMESTAMP(timestamp)/(15 * 60))AS timekey
FROM表
GROUP BY timekey;
I've got a monitoring system that is collecting data every n seconds (n ~=10 but varies). I'd like to aggregate the collected data by 15 minute intervals. Is there a way to corral the timestamp column into 15 minute chunks to allow for grouping to work?
解决方案
SELECT ROUND(UNIX_TIMESTAMP(timestamp)/(15 * 60)) AS timekey
FROM table
GROUP BY timekey;
这篇关于组间mysql查询间隔15分钟的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文