小编sky*_*sky的帖子

我想要做的mySQL命令有些困难.

SELECT a.timestamp, name, count(b.name) 
FROM time a, id b 
WHERE a.user = b.user
  AND a.id = b.id
  AND b.name = 'John'
  AND a.timestamp BETWEEN '2010-11-16 10:30:00' AND '2010-11-16 11:00:00' 
GROUP BY a.timestamp

这是我目前的输出声明.

timestamp            name  count(b.name)
-------------------  ----  -------------
2010-11-16 10:32:22  John  2
2010-11-16 10:35:12  John  7
2010-11-16 10:36:34  John  1
2010-11-16 10:37:45  John  2
2010-11-16 10:48:26  John  8
2010-11-16 10:55:00  John  9
2010-11-16 10:58:08  John  2

如何将它们分组为5分钟的间隔结果？

我希望我的输出像

timestamp            name  count(b.name)
-------------------  ----  -------------
2010-11-16 10:30:00  John  2 …