不敢，共同学习，共同进步作者: 张兴康 时间: 2020-7-7 13:43 标题: 按天/周/月/季/年统计数据 //按天统计
select count(dataid) as 每天操作数量, sum()
from tablename
group by trunc(createtime, 'DD'))
//按自然周统计
select to_char(date,'iw'),sum()
from tablename
group by to_char(date,'iw')
//按自然月统计
select to_char(date,'mm'),sum()
from tablename
group by to_char(date,'mm')
//按季统计
select to_char(date,'q'),sum()
from tablename
group by to_char(date,'q')
//按年统计
select to_char(date,'yyyy'),sum()
from tablename
group by to_char(date,'yyyy')
--按季度统计数据示例1
select to_char(request_time,'yyyy') 年度, TO_CHAR(request_time,'Q') 季度,count(*) 次数
from sa_log
group by to_char(request_time,'q') ,to_char(request_time,'yyyy')
受教
