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On 09/17/07 23:34, Ow Mun Heng wrote:
> Just wondering how everyone is doing aggregration of production data.
>
> Data which runs in the vicinity of a few million a week.
>
> What are the methods which will effectively provide the
> min/max/average/count/stdev of the weekly sample size based on different
> products/software mix etc.
>
> and still be able to answer correctly, what's the average of data_1 over
> the pass 2 months?
That's the purpose of data warehouses and ETL, isn't it?
- --
Ron Johnson, Jr.
Jefferson LA USA
Give a man a fish, and he eats for a day.
Hit him with a fish, and he goes away for good!
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