ORACLE得到一年中的星期和每星期的日期

select to_char(RQ,'iw'),RQ, RQ + 7
  from (select to_date(2010 || '0101', 'yyyymmdd') + rownum - 1 rq,
               to_char(to_date(2010 || '0101', 'yyyymmdd') + rownum - 1,
                       'day') rd
          from (select rownum
                  from dual
                connect by rownum <= to_date(2010 || '1231', 'yyyymmdd') -
                           to_date(2010 || '0101', 'yyyymmdd') + 1))
 where rd = '星期日'