解决方法：
select date‘2014-06-01‘+rownum-1 as my_numbers
from dual
connect by level <= (date‘2014-07-01‘ - date‘2014-06-01‘) + 1
date 和to_date功能一样
select to_date(‘2014-06-01‘,‘yyyy-mm-dd‘)+rownum-1 as my_numbers
from dual
connect by level <= (to_date(‘2014-07-01‘,‘yyyy-mm-dd‘) - to_date(‘2014-06-01‘,‘yyyy-mm-dd‘)) + 1
oracle中用SQL实现两个日期间的日期形成一个数据集,布布扣,bubuko.com
原文地址：http://www.cnblogs.com/coolsundy/p/3844943.html
