sqlserver按⽇、周、⽉统计⽅法

sqlserver按⽇、周、⽉统计⽅法
create table T(⽇期时间 datetime, 数量 int)
insert T select '2007-1-1 19:31:25 ', 56
union all select '2007-1-1 21:31:25 ', 35
union all select '2007-1-1 15:31:25 ', 43
union all select '2007-1-2 19:31:25 ', 34
union all select '2007-1-3 15:31:25 ', 35
union all select '2007-1-3 21:31:25 ', 65
--按⽇统计
select ⽇期时间=convert(char(10), ⽇期时间, 120), 数量=sum(数量)
from T
group by convert(char(10), ⽇期时间, 120)
--按周统计
select ⽇期时间=datepart(week, ⽇期时间), 数量=sum(数量)
from T
where year(⽇期时间)=year(getdate())
group by datepart(week, ⽇期时间)
--按⽉统计
select ⽇期时间=convert(char(7), ⽇期时间, 120), 数量=sum(数量)
from T
group by convert(char(7), ⽇期时间, 120)
　　--实例：
　　--按⽇统计
　　select sum(cniTicketCount) as STickCount,Convert(varchar(10),cnAppDate,23) as ScnAppDate from
(select B.*,U.UserName from SystemUsers U inner join BookingDetails B on U.AutoID=B.cnvcApplyMan
where B.cniTicketCount>0 and B.cnAppDate between '2010/09/01' and '2010/10/01') as A
group by Convert(varchar(10),cnAppDate,23)
　　--按周统计
　　select sum(cniTicketCount) as STickCount,datepart(week,cnAppDate)as ScnAppDate from
(select B.*,U.UserName from SystemUsers U inner join BookingDetails B on U.AutoID=B.cnvcApplyMan
Where B.cniTicketCount>0) as A
group by datepart(week,cnAppDate)
　　--按⽉统计
　　select sum(cniTicketCount) as STickCount,substring(Convert(varchar(10),cnAppDate,23),1,7) as ScnAppDate from
(select B.*,U.UserName from SystemUsers U inner join BookingDetails B on U.AutoID=B.cnvcApplyMan
Where B.cniTicketCount>0) as A
group by substring(Convert(varchar(10),cnAppDate,23),1,7)
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作者：1留云初雪a
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