一条SQL查出当月的每一天

select number+1
from master..spt_values
where type='p' and DATEADD(day,number, cast(CONVERT(varchar(7),'2013-02-03')+'-01' as datetime))<DATEADD(MONTH,1,cast(CONVERT(varchar(7),'2013-02-03')+'-01' as datetime))

结果：

返回带有年月日的日期

select   CAST( CONVERT(varchar(7),'2013-02-03')+'-'+CONVERT(VARCHAR(2),number+1)  AS datetime)
from master..spt_values
where type='p' and DATEADD(day,number, cast(CONVERT(varchar(7),'2013-02-03')+'-01' as datetime))<DATEADD(MONTH,1,cast(CONVERT(varchar(7),'2013-02-03')+'-01' as datetime))

结果：