Re: Fwd: Ask for a question

From: Raymond O'Donnell <rod(at)iol(dot)ie>
To: Pierre Hsieh <pierre(dot)hsieh(at)gmail(dot)com>, 'PostgreSQL' <pgsql-general(at)postgresql(dot)org>
Subject: Re: Fwd: Ask for a question
Date: 2015-01-21 15:37:31
Message-ID: 54BFC7BB.7050109@iol.ie
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On 21/01/2015 14:38, Pierre Hsieh wrote:
>
>
> Hi,
>
>
>
> Would you please tell me whether PostgreSQL can execute the following
> tasks? If not, please also tell me which one can help me for that. Thanks

Not clear what you're asking, but if you just want to find the standard
deviation of a sample then that's no problem:

http://www.postgresql.org/docs/9.4/static/functions-aggregate.html#FUNCTIONS-AGGREGATE-STATISTICS-TABLE

Hope this helps,

Ray.

--
Raymond O'Donnell :: Galway :: Ireland
rod(at)iol(dot)ie

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