sqlserver中如何实现时间按月,日,小时分组查询

--按照月份统计 select count(id) cnt,datepart(mm,time) [Month] from [table] where [time] between '2007/09/08 09:10:43' and '2007/10/09 04:32:37' group by datepart(mm,time) --按照日统计 select count(id) cnt,datepart(dd,time) [Day] from [table] where time between '2007/09/08 09:10:43' and '2007/10/09 04:32:37' group by datepart(dd,time) --按照小时统计 select count(id) cnt,datepart(hh,time) [Hour] from [table] where [time] between '2007/09/08 09:10:43' and '2007/10/09 04:32:37' group by datepart(hh,time)