oracle 按天天,每周,每个月,每季度,每一年查询统计数据

//按天统计sql select count(dataid) as 天天操做数量, sum()table from tablenamedate group by trunc(createtime, 'DD'))select //按天然周统计  select to_char(date,'iw'),sum()  from  tablename group by to_char(date,'iw') i

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