Subject | Re: [firebird-support] Wrong summation within join |
---|---|
Author | Arno Brinkman |
Post date | 2005-01-09T00:00:56Z |
Hi,
as well?
Regards,
Arno Brinkman
ABVisie
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Firebird open source database (based on IB-OE) with many SQL-99 features :
http://www.firebirdsql.org
http://www.firebirdsql.info
http://www.fingerbird.de/
http://www.comunidade-firebird.org/
Support list for Interbase and Firebird users :
firebird-support@yahoogroups.com
Nederlandse firebird nieuwsgroep :
news://80.126.130.81
> I have a strange problem with the following clause:What do you meant with removing the first aggregation? Removing a LEFT JOIN
>
> -----------------
> SELECT
> a.ID, a.A1, a.A2,
> SUM(b.B1 * b.B2) AS ValueB,
> SUM(c.C1) AS ValueC
> FROM
> TableA a
> LEFT JOIN TableB b ON b.AID = a.ID
> LEFT JOIN TableC c ON c.AID = a.ID
> GROUP BY
> a.ID, a.A1, a.A2
> ------------------
>
> The first sum is correctly calculated, but the second one is doubled.
> When I remove the first aggragation, then the second value is correct!?
>
> Any hints are greatly appreciated.
as well?
Regards,
Arno Brinkman
ABVisie
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Firebird open source database (based on IB-OE) with many SQL-99 features :
http://www.firebirdsql.org
http://www.firebirdsql.info
http://www.fingerbird.de/
http://www.comunidade-firebird.org/
Support list for Interbase and Firebird users :
firebird-support@yahoogroups.com
Nederlandse firebird nieuwsgroep :
news://80.126.130.81