oracle 如何 查询当月 每日记录 count

select tabtmp.rq, count(1)
  from tablename e,
       (select trunc(add_months((last_day(sysdate) + 1), -1)) + rownum - 1 rq
          from dual
        connect by rownum <=
                   trunc(last_day(sysdate)) -
                   trunc(add_months((last_day(sysdate) + 1), -1)) + 1) tabtmp
 where tabtmp.rq = e.rq(+);