失去指定时间段内日期

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??????? 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)