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