Message-ID: <414F02FF.8000603@numerixtechnology.de>
Date: Mon, 20 Sep 2004 17:19:11 +0100
From: T E Schmitz <mailreg@numerixtechnology.de>
Reply-To: mailreg@numerixtechnology.de
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To: pgsql-sql@postgresql.org
Subject: Re: COUNT(*) to find records which have a certain number of
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I figured it eventually. (The only thing I don't know is where to put
the ORDER BY.)

> I want to select only those BRAND/MODEL combinations, where the MODEL 
> has more than one TYPE, but only where one of those has TYPE_NAME='xyz'.
> I am not interested in MODELs with multiple TYPEs where none of them are 
> called 'xyz'.

SELECT
BRAND_NAME,MODEL_NAME
FROM TYPE
left outer join MODEL  on MODEL_PK =TYPE.MODEL_FK
left outer join BRAND  on BRAND_PK =MODEL.BRAND_FK
group by BRAND.BRAND_NAME,MODEL_NAME
having count(*)>1

intersect

SELECT
BRAND_NAME,MODEL.MODEL_NAME
FROM TYPE
left outer join MODEL  on MODEL_PK =TYPE.MODEL_FK
left outer join BRAND  on BRAND_PK =MODEL.BRAND_FK
where TYPE_NAME='xyz'
group by BRAND.BRAND_NAME,MODEL_NAME


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Regards/Gruß,

Tarlika Elisabeth Schmitz


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Regards/Gruß,

Tarlika Elisabeth Schmitz