From: T E Schmitz <mailreg@numerixtechnology.de>
To: pgsql-sql@postgresql.org
Subject: Re: COUNT(*) to find records which have a certain number of
Date: Mon, 20 Sep 2004 17:19:11 +0100
Message-ID: <414F02FF.8000603@numerixtechnology.de> (raw)
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
--
Regards/Gruß,
Tarlika Elisabeth Schmitz
--
Regards/Gruß,
Tarlika Elisabeth Schmitz
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To: pgsql-sql@postgresql.org
Cc: mailreg@numerixtechnology.de
Subject: Re: COUNT(*) to find records which have a certain number of
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