參考部落格園的文章，暫時在這裡整理一下，後期再做補充。

--按年分組檢視

   select  to_char(time_field, 'YYYY') as d ,  count(id)  as  total_count,sum (count_field)  as  total_amount from  table_name
  where  time_field  between  start_time  and  end_time group by d

--按月分組檢視
   select  to_char(time_field, 'YYYY-MM') as d ,  count(id)  as  total_count,sum (count_field)   as  total_amount from  table_name
  where time_field between  start_time  and  end_time  group by d

--按天分組檢視
   select  to_char(time_field, 'YYYY-MM-DD') as d ,  count(id)  as  total_count,sum (count_field)   as  total_amount from  table_name
  where time_field between  start_time  and  end_time  group by d


--按小時分組檢視
     select  to_char(time_field, 'YYYY-MM-DD  HH24 ' ) as d ,  count(id)  as  total_count,sum (count_field)   as  total_amount from  table_name
  where time_field  between start_time  and  end_time  group by d  order  by  d

--按秒分組檢視
     select  to_char(time_field, 'YYYY-MM-DD  HH24:MI:SS ' ) as d ,  count(id)  as  total_countl,sum (count_field)   as  total_amount from  table_name
  where  time_field  between start_time  and  end_time  group by d