获取日期列表：

SELECT TO_CHAR(TO_DATE('2014-10-01', 'yyyy-MM-dd') + ROWNUM - 1, 'yyyyMMdd') as daylist
  FROM DUAL
CONNECT BY ROWNUM <=
           trunc(to_date('2015-06-01', 'yyyy-MM-dd') -
                 to_date('2014-10-01', 'yyyy-MM-dd')) + 1

获取月份列表：

SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2014-10', 'yyyy-MM'), ROWNUM - 1),
               'yyyyMM') as monthlist
  FROM DUAL
CONNECT BY ROWNUM <=
           months_between(to_date('2015-06', 'yyyy-MM'),
                          to_date('2014-10', 'yyyy-MM')) + 1

SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2014-10', 'yyyy-MM'), (ROWNUM - 1) * 12),
               'yyyy') as yearlist
  FROM DUAL
CONNECT BY ROWNUM <=
           months_between(to_date('2015-06', 'yyyy-MM'),
                          to_date('2014-10', 'yyyy-MM')) / 12 + 1