Re: Full table scan error

You have a outer join in yr history table. Also you have a IN condition for the history table for which the CBO might think a FTS might be cheaper..

Babu
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Friday, January 03, 2003 7:19 AM

> Hi List,
>
> I have the below query whose explain plan is showing that it is doing full
> table scan on Historie table:
>
> select F1.AMTLICHESKENNZEICHEN
>

AMTLICHESKENNZEICHEN,F1.OID,F1.VERKAUFSBEZEICHNUNG,B1.FAHRZEUGARTTEXT,B1.FAH
>

RZEUGHERSTELLERTEXT,B1.FAHRZEUGTYPTEXT,B1.FIN,B1.VERKAUFSBEZEICHNUNG,H1.AUFT
> RAGSPOSITIONSNR,H1.DATUMSTR,H1.OID,H1.PRODUKT,H1.VORGANGSNUMMER,'Stamm'
> SOURCE
> from ZPAB.FAHRZEUG F1 , ZPAB.FZGBRIEF B1 , ZPAB.HISTORIE H1
> where F1.FZGBRIEF = B1.OID AND F1.OID = H1.MYTECHOBJEKT(+) AND
> ((H1.produkt, TO_DATE(H1.DATUMSTR,'YYYY-MM-DD')) IN (select
> ZPAB.HISTORIE.produkt, TO_DATE(MAX(ZPAB.historie.DATUMSTR),'yyyy-mm-dd')
> from ZPAB.historie, ZPAB.FAHRZEUG
> WHERE ZPAB.FAHRZEUG.OID = ZPAB.historie.MYTECHOBJEKT AND ZPAB.FAHRZEUG.OID
=
> F1.OID AND ZPAB.historie.PRODUKT
>

IN('HU','AU','SP','HUPlus','GGVS','P193','P21','UVVFahrzeuganbau','Ersatzpla
> kette','SOL')
> group by ZPAB.historie.produkt) OR H1.PRODUKT IN
>

('StandardGutachten','SchadenGutachten','BewertungZustandspruefung','MagBewe
>

rtungZustandspruefung','Transportschadenbericht','Reparaturpruefung','Rechnu
>

ngspruefungsbericht','Reparaturpruefungsbericht','FzgSchadengutachten','Hage
>

lschadenbericht','Massenschadenbericht','Kalkulationsbericht','Schadenberich
>

t','Bericht','DekraSiegel','NfzSchadenGutachten','HypoWBWGutachten','MagGuta
> chten','MagBewertung','Bewertung') OR F1.OID NOT IN (SELECT
> ZPAB.FAHRZEUG.OID
> FROM ZPAB.FAHRZEUG,ZPAB.HISTORIE
> WHERE ZPAB.FAHRZEUG.OID = ZPAB.historie.MYTECHOBJEKT)) AND
> (F1.AMTLICHESKENNZEICHEN LIKE 'DD%')AND rownum <=10
>
> and for HISTORIE, it is showing TABLE ACCESS FULL.
>
> I have created indexes on produkt and mytechobjekt columns of historie
> table. Still I am getting full table scan errors. I am sending herewith
> the snapshot of the explain plan as seen in spotlight.
>
> Could you please advise me as to how do I eradicate the full table access
> error on Historie table? Any help in this regard is very much
appreciated.
>
> Thanks and Regards,
>
> Ranganath
>
> <<Doc1.doc>>
>
>
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-- 
Author: Babu Nagarajan
  INET: orclbabu_at_hotmail.com

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