From: Karsten Hilbert <Karsten.Hilbert@gmx.net>
To: pgsql-sql@postgresql.org
Subject: Re: newbie question
Date: Fri, 3 Mar 2006 12:04:47 +0100
Message-ID: <20060303110447.GA7322@merkur.hilbert.loc> (raw)
In-Reply-To: <1141378989.5311.13.camel@geologia5.agora.ing.unipg.it>
References: <1141378989.5311.13.camel@geologia5.agora.ing.unipg.it>
On Fri, Mar 03, 2006 at 10:43:09AM +0100, ivan marchesini wrote:
> I have fastly created a table in a postgresql database..
> some columns where edited by hand (columns A, B, C), and some others
> (columns D, E, F) have been calculated as a result of mathematical
> equation (where the factors are the A, B, C columns)....
> now I simply need to change some values in the A, B, C columns and I
> would like to obtain the correct values in the D, E, F column...
> I know that this is a tipical problem of a spreadsheet but how can I
> solve it with a DBMS??
Use triggers or a view.
Karsten
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To: pgsql-sql@postgresql.org
Cc: Karsten.Hilbert@gmx.net
Subject: Re: newbie question
In-Reply-To: <20060303110447.GA7322@merkur.hilbert.loc>
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