得到指定时间段内日期
?
??????? select (to_date('2013-01-01', ' yyyy-MM-dd ') + rownum - 1) ichdadate from user_objects??????? where rownum <= (to_date('2013-01-14', ' yyyy-MM-dd') - to_date('2013-01-01 ', 'yyyy-MM-dd') + 1)
