sql server 返回2个日期之间的所有月份

SELECT CONVERT(varchar(6),DATEADD(month,number,'20130101'),112) AS [Date] 
FROM master.dbo.spt_values 
WHERE type = 'p'
    AND DATEADD(month,number,'20130101') <= '20130501';

查询结果：

date

201301

201302

201303

201304

201305