oracle 按天天,每週,每個月,每季度,每一年查詢統計數據

//按天統計sql select count(dataid) as 天天操做數量, sum()table from tablenamedate group by trunc(createtime, 'DD'))select //按天然周統計  select to_char(date,'iw'),sum()  from  tablename group by to_char(date,'iw') i
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