Oracle-L: RE: Slow running query

From: Nicoll, Iain <IAIN.D.NICOLL_at_saic.com>
Date: Mon, 27 Jan 2003 06:54:23 -0800
Message-ID: <F001.0053B0A6.20030127065423@fatcity.com>

Is F1.AMTLICHESKENNZEICHEN indexed as this seems to be the main filter?

-----Original Message-----
[mailto:Ranganath.Krishnaswamy_at_blr.hpsglobal.com] Sent: 27 January 2003 13:04
To: Multiple recipients of list ORACLE-L

Hi List:

I have the below query which is taking 5 min. 20 sec. to fetch the records. Can you please let me know as to how do I reduce the responste time? I have created indexes on Fahrzeug.FZGBRIEF and Historie.mytechobjekt and also the Oid column is uniquely indexed. I replaced the FIRST_ROWS hint with RULE hint as a result of which it is taking 3-4 min.

select /*+FIRST_ROWS*/ count(*)

from

ZPAB.FZGBRIEF B1, ZPAB.FAHRZEUG F1, ZPAB.HISTORIE H1 where

F1.FZGBRIEF = B1.OID AND F1.OID = H1.MYTECHOBJEKT(+) AND (H1.CCCONTROL IN(1, 2, 3) OR NOT EXISTS

	(SELECT /*+INDEX_FFS(HISTORIE, I_MYTECHOBJEKT) */ ZPAB.FAHRZEUG.OID
	FROM ZPAB.FAHRZEUG,ZPAB.HISTORIE 
	
	WHERE ZPAB.FAHRZEUG.OID = ZPAB.HISTORIE.MYTECHOBJEKT and
	
	ZPAB.FAHRZEUG.oid=F1.oid))
	
	AND F1.AMTLICHESKENNZEICHEN LIKE 'DD%'

Any help in this regard is very much appreciated.

Thanks and Regards,

Ranganath
WARNING: The information in this message is confidential and may be legally privileged. It is intended solely for the addressee. Access to this message by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful. Please immediately contact the sender if you have received this message in error. Thank you.
--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

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

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------

To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
--

Please see the official ORACLE-L FAQ: http://www.orafaq.net
--

Author: Nicoll, Iain
INET: IAIN.D.NICOLL_at_saic.com

Fat City Network Services    -- 858-538-5051 http://www.fatcity.com
San Diego, California        -- Mailing list and web hosting services
---------------------------------------------------------------------