SQL 返回期间内的所有日期

复制代码代码如下:
select rownum as dateIndex,to_date（"20090701","yyyy-mm-dd"）+ rownum-1 AS DATE_ FROM DUAL CONNECT BY LEVEL >= 1 AND LEVEL <=（TO_DATE（"20090731","yyyy-mm-dd"）-TO_DATE（"20090701","yyyy-mm-dd"）+1）

result:

1 2009/07/01
2 2009/07/02
3 2009/07/03
4 2009/07/04
5 2009/07/05
6 2009/07/06
7 2009/07/07
8 2009/07/08
9 2009/07/09
10 2009/07/10
11 2009/07/11
12 2009/07/12
13 2009/07/13
14 2009/07/14
15 2009/07/15