SQL Server获取时间段内的所有月份

declare @begin datetime,@end datetime
set @begin='2012-1-5'
set @end='2012-11-3'

declare @months int
set @months=DATEDIFF(month,@begin,@end)
select convert(varchar(7),DATEADD(month,number,@begin) ,120) AS 月份
from master.dbo.spt_values 
where type='p' AND number<=@months