| From: | Ron Johnson <ron(dot)l(dot)johnson(at)cox(dot)net> |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Q:Aggregrating Weekly Production Data. How do you do it? |
| Date: | 2007-09-18 12:54:03 |
| Message-ID: | 46EFCA6B.8010907@cox.net |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
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| Lists: | pgsql-general |
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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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