Oracle 替代Sqlserver MASTER..SPT_VALUES 获取日期区间的所有日期 表结果集 (不积跬步,无以至千里)

输入日期范围,获取日期范围内所有的日期

SqlServer写法:

Select Convert(Varchar(10), DateAdd(dd, ID, Cast('2014-08-01' As DateTime)), 120) as rlDate 
From (SELECT TOP 40 ID=number FROM  MASTER..SPT_VALUES WHERE TYPE='P' ) DT
where cast(Convert(Varchar(10), DateAdd(dd, ID, Cast('2014-08-01' As DateTime)), 120) as datetime)<=Cast('2014-08-30' As DateTime)

返回结果集:

rlDate

2014-08-01

2014-08-02

2014-08-03

...

2014-08-30

那么在Oracle中怎实现这个呢, Oracle又没有MASTER..SPT_VALUES 辅助

那么替代方式已经找到了

select (to_date('2014-08-01','yyyy-mm-dd')+rownum-1) rn from dual connect by rownum <= (to_date('2014-08-30','yyyy-mm-dd')-to_date('2014-08-01','yyyy-mm-dd')+1)

返回结果集也是

2014-08-01

2014-08-02

2014-08-03

...

2014-08-30