SQL 按周,月,季度,年查询统计数据

//按自然周统计
select to_char(date,'iw'),sum()
from
where
group by to_char(date,'iw')

//按自然月统计
select to_char(date,'mm'),sum()
from
where
group by to_char(date,'mm')

//按季统计
select to_char(date,'q'),sum()
from
where
group by to_char(date,'q')

//按年统计
select to_char(date,'yyyy'),sum()
from
where
group by to_char(date,'yyyy')

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3 楼 baozhiyao888 2011-05-04  

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2 楼 baozhiyao888 2011-05-04  

1 楼 baozhiyao888 2011-05-04