Good idea, it worked.

-----Original Message-----
From: Louis Kleiman [mailto:lkleiman@...]
Sent: Monday, July 12, 2004 10:15 AM
To: firebird-support@yahoogroups.com
Subject: RE: [firebird-support] UNION not allowed in EXISTS clause?

Rick -



I know nothing about the acceptability of a UNION in an EXISTS clause,
but
can't you separate the two parts of the UNION as follows?:



.

WHERE (NOT EXISTS
(SELECT DATESBM FROM CLAIMSPAIDREVERSED WHERE RXCLAIMNBR='5' AND
CLMSEQNBR<=123 and CLAIMSTS='X'))

AND (NOT EXISTS (SELECT CHANGED FROM CLAIMAUDIT WHERE RXCLAIMNBR=5 AND
RXCLAIMSEQ=123 AND REASON='TEST'))



I doubt it would have much of an impact on performance - if any at all.



Louis Kleiman

SSTMS, Inc.



_____

From: Rick DeBay [mailto:rdebay@...]
Sent: Monday, July 12, 2004 9:37 AM
To: firebird-support@yahoogroups.com
Subject: RE: [firebird-support] UNION not allowed in EXISTS clause?



Does anyone know where I can start hunting for answers to this?

-----Original Message-----
From: Rick DeBay
Sent: Friday, July 09, 2004 11:53 AM
To: firebird-support@yahoogroups.com
Subject: [firebird-support] UNION not allowed in EXISTS clause?

The select in the not-exists clause runs fine on its own. When it's
part of an exists or not-exists clause, it fails with the given error.

INSERT INTO CLAIMAUDIT (RXCLAIMNBR,RXCLAIMSEQ,AUDITSTATUS,REASON)
SELECT DISTINCT 5,123,0,'TEST'
FROM CLAIMAUDIT
WHERE NOT EXISTS
(SELECT DATESBM FROM CLAIMSPAIDREVERSED WHERE RXCLAIMNBR='5' AND
CLMSEQNBR<=123 and CLAIMSTS='X'
UNION
SELECT CHANGED FROM CLAIMAUDIT WHERE RXCLAIMNBR=5 AND
RXCLAIMSEQ=123 AND REASON='TEST')

Dynamic SQL Error SQL error code = -104 Token unknown - line 6, char 6
UNION

Rick DeBay
Senior Software Developer
RxStrategies.net





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