oracle sql生成日历表

以下是生成2017年日历表：

insert into dw_mdl.m_hadp_dim_date
select to_char(everyDay,'yyyy-mm-dd') as dt,
   to_char(everyday,'yyyy') as yr,
   to_char(everyday,'mm') as mm,
   to_char(everyday,'dd') as dd,
   to_char(everyday,'dy') as dayofweek,
   /*ORACLE自定义的标准周*/
   to_char(everyday,'WW') as weeknum,
   /*该月的第几周*/
   /*lpad(to_char(everyday,'w'),6) as monthOfWeek,*/
   to_char(everyday,'Q') as qr,
   /*ISO的标准周，通常使用这个*/
   to_char(everyday,'IW') as bourse_week,
   null as id
   from(select to_date('','yyyymmdd') + level - 1 as everyDay from dual
  connect by level <=
  (last_day(to_date('','yyyymmdd')) - to_date('','yyyymmdd') +1));