SQL query without UNION clause

From: Krishnaswamy, Ranganath <Ranganath.Krishnaswamy_at_blr.hpsglobal.com>
Date: Wed, 18 Dec 2002 23:53:45 -0800
Message-ID: <F001.0051DD94.20021218235345@fatcity.com>

Hi all,

How do I forumlate the below query without using the UNION clause?

SELECT H1.OID HISTORIEOID,FAHRZEUG.AMTLICHESKENNZEICHEN, FAHRZEUG.OID,
H1.PRODUKT,H1.AUFTRAGSPOSITIONSNR,H1.MYTECHOBJEKT FROM FAHRZEUG,HISTORIE H1

WHERE FAHRZEUG.OID = H1.MYTECHOBJEKT(+)
AND TO_DATE(H1.DATUMSTR,'YYYY-MM-DD') = (select
max(TO_DATE(H1.DATUMSTR,'yyyy-mm-dd'))

from historie ,FAHRZEUG WHERE FAHRZEUG.OID = HISTORIE.MYTECHOBJEKT AND HISTORIE.MYTECHOBJEKT=H1.MYTECHOBJEKT)
AND H1.PRODUKT IN('HU', 'AU')
UNION
SELECT H1.OID HISTORIEOID,FAHRZEUG.AMTLICHESKENNZEICHEN, FAHRZEUG.OID,
H1.PRODUKT,H1.AUFTRAGSPOSITIONSNR,H1.MYTECHOBJEKT FROM FAHRZEUG,HISTORIE H1
WHERE FAHRZEUG.OID = H1.MYTECHOBJEKT(+) AND H1.PRODUKT IN('DS', 'NFZ', 'BES', 'DekraSiegel', '700000', '700202');

I can't use the union clause because I am using an Object-Relationship tool called Cocobase which doesn't support the UNION clause. Any help in this regard is very much appreciated.

Thanks and Regards,

Ranganath

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Author: Krishnaswamy, Ranganath
  INET: Ranganath.Krishnaswamy_at_blr.hpsglobal.com

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