From: | Patrik Kudo <kudo(at)partitur(dot)se> |
---|---|
To: | Graeme Merrall <gmerrall(at)email(dot)com> |
Cc: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: sum a subquery? |
Date: | 2000-04-14 05:54:51 |
Message-ID: | 38F6B2AB.645B1997@partitur.se |
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Thread: | |
Lists: | pgsql-sql |
Hi,
I think what you want to do is the following:
SELECT sum(number_column), letter_column FROM table_name
GROUP BY letter_column;
Hope I got it right...
Regards,
Patrik Kudo
> Graeme Merrall wrote:
>
> Dunno if this is the right way to ask a question but...
> I'm inheriting some data and need to perform a query on it to sum a
> column of figures. The only problem I have to sum on the condition of
> the contents of another column.
> e.g.
>
> 12.23 I
> 23.45 P
> 56.67 I
> 11.11 P
>
> SO I need to sum all the I's and all the P's. Is it possible to use a
> sub-select to do this or what. I've a feeling I'm messing around in
> the right area but can't quite get it together.
>
> Cheers,
> Graeme
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