本文共 488 字,大约阅读时间需要 1 分钟。
//按天统计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')
转载自:http://blog.csdn.net/u011659172/article/details/40186009