获取两个时间节点之间所有的天

select to_char(to_date(m.dates),'yyyy-mm-dd Day') as ss

from(SELECT TRUNC(TO_DATE('2015-04-28', 'yyyy-MM-dd')) + ROWNUM - 1 AS DATES    

FROM   ALL_OBJECTS    

WHERE  TRUNC(TO_DATE('2015-04-28', 'yyyy-MM-dd')) + ROWNUM - 1 <=    

       TRUNC(TO_DATE('2015-05-19', 'yyyy-MM-dd'))) m