方法一:
select CONVERT(varchar, getdate(), 120 ) 
2004-09-12 11:06:08 
select replace(replace(replace(CONVERT(varchar, getdate(), 120 ),/'-/',/'/'),/' /',/'/'),/':/',/'/') 
20040912110608 h
select CONVERT(varchar(12) , getdate(), 111 ) 
2004/09/12 
select CONVERT(varchar(12) , getdate(), 112 ) 
20040912 
select CONVERT(varchar(12) , getdate(), 102 ) 
2004.09.12 
select CONVERT(varchar(12) , getdate(), 101 ) 
09/12/2004 
select CONVERT(varchar(12) , getdate(), 103 ) 
12/09/2004 
select CONVERT(varchar(12) , getdate(), 104 ) 
12.09.2004 
select CONVERT(varchar(12) , getdate(), 105 ) 
12-09-2004 
select CONVERT(varchar(12) , getdate(), 106 ) 
12 09 2004 
select CONVERT(varchar(12) , getdate(), 107 ) 
09 12, 2004 
select CONVERT(varchar(12) , getdate(), 108 ) 
11:06:08 
select CONVERT(varchar(12) , getdate(), 109 ) 
09 12 2004 1 
select CONVERT(varchar(12) , getdate(), 110 ) 
09-12-2004 
select CONVERT(varchar(12) , getdate(), 113 ) 
12 09 2004 1 
select CONVERT(varchar(12) , getdate(), 114 ) 
11:06:08.177
方法二:
declare @tt varchar(4),@pp varchar(8) ,@ss varchar(4),@aa varchar(16)
set @tt=rtrim(cast(month(getdate()) as varchar(10)))
set @ss=rtrim(cast(day(getdate()) as varchar(10)))
select @pp=rtrim(cast(year(getdate()) as varchar(10)))
select @aa=@pp+@tt+@ss
select @aa
只显示年月,不显示日:select datepart(year,getdate())*100+datepart(month,getdate())
                   200811
 
 select year(OrderDate) as yy ,sum(FreightTotMon)as price from [Order] group by  year(OrderDate)
select year(OrderDate)as yy ,month(OrderDate) as mon, sum(FreightTotMon) as price from [Order] group by month(OrderDate),year(OrderDate)
select OrderDate as date, sum(FreightTotMon) as price from [Order] group by OrderDate
--select OrderDate as date, FreightTotMon as price from [Order]
--select convert(varchar(12),OrderDate,111) as date, sum(FreightTotMon) as price from [Order] group by OrderDate
--select datepart(year,OrderDate)*100 + datepart(month,OrderDate) as date, sum(FreightTotMon) as price from [Order] group by datepart(year,OrderDate)*100 + datepart(month,OrderDate)