sql查询当前月内的所有日期

select convert(varchar(10),dateadd(dd,number,convert(varchar(8),getdate(),120)+'01'),120) as dt
from master..spt_values 
where type='P' 
and dateadd(dd,number,convert(varchar(8),getdate(),120)+'01')<=dateadd(dd,-1,convert(varchar(8),dateadd(mm,1,getdate()),120)+'01')