SQLserver 按日、周、月统计数据

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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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