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Home -> Community -> Mailing Lists -> Oracle-L -> Query optimization
Hi List,
I have the below query:
select F1.AMTLICHESKENNZEICHEN AMTLICHESKENNZEICHEN
, F1.OID
, F1.VERKAUFSBEZEICHNUNG
, B1.FAHRZEUGARTTEXT
, B1.FAHRZEUGHERSTELLERTEXT
, B1.FAHRZEUGTYPTEXT
, B1.FIN
, B1.VERKAUFSBEZEICHNUNG
, H1.AUFTRAGSPOSITIONSNR
, 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', 'Ersat
zplakette', 'SOL')
group by ZPAB.historie.produkt)
OR H1.PRODUKT IN ('StandardGutachten', 'SchadenGutachten'
, 'BewertungZustandspruefung'
, 'MagBewertungZustandspruefung',
'Transportschadenbericht'
, 'Reparaturpruefung'
, 'Rechnungspruefungsbericht'
, 'Reparaturpruefungsbericht',
'FzgSchadenguta
chten', 'Hagelschadenbericht', 'Massenschadenbericht', 'Kalkulationsbericht
', 'Schadenbericht', 'Bericht', 'DekraSiegel', 'NfzSchadenGutachten'
, 'HypoWB
WGutachten', 'MagGutachten', 'MagBewertung', 'Bewertung')
OR F1.OID NOT IN (SELECT ZPAB.FAHRZEUG.OID
FROM ZPAB.FAHRZEUG
, ZPAB.HISTORIE
WHERE ZPAB.FAHRZEUG.OID =
ZPAB.historie.MYTECHOBJEKT))
Here is the explain plan for the query:
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE 1 0 COUNT (STOPKEY)
2 1 FILTER
3 2 NESTED LOOPS (OUTER)
4 3 NESTED LOOPS
5 4 TABLE ACCESS (BY INDEX ROWID) OF 'FAHRZEUG'
6 5 INDEX (RANGE SCAN) OF 'I_FAHRZEUG_1' (NON-UNIQUE
)
7 4 TABLE ACCESS (BY INDEX ROWID) OF 'FZGBRIEF'
8 7 INDEX (UNIQUE SCAN) OF 'PK_FZGBRIEF' (UNIQUE)
9 3 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
10 9 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NON-UNIQUE
)
11 2 FILTER
12 11 SORT (GROUP BY)
13 12 CONCATENATION
14 13 NESTED LOOPS
15 14 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
16 14 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
17 16 AND-EQUAL
18 17 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
19 17 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
20 13 NESTED LOOPS
21 20 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
22 20 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
23 22 AND-EQUAL
24 23 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
25 23 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
26 13 NESTED LOOPS
27 26 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
28 26 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
29 28 AND-EQUAL
30 29 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
31 29 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
32 13 NESTED LOOPS
33 32 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
34 32 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
35 34 AND-EQUAL
36 35 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
37 35 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
38 13 NESTED LOOPS
39 38 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
40 38 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
41 40 AND-EQUAL
42 41 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
43 41 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
44 13 NESTED LOOPS
45 44 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
46 44 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
47 46 AND-EQUAL
48 47 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
49 47 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
50 13 NESTED LOOPS
51 50 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
52 50 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
53 52 AND-EQUAL
54 53 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
55 53 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
56 13 NESTED LOOPS
57 56 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
58 56 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
59 58 AND-EQUAL
60 59 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
61 59 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
62 13 NESTED LOOPS
63 62 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
64 62 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
65 64 AND-EQUAL
66 65 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
67 65 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
68 13 NESTED LOOPS
69 68 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
70 68 TABLE ACCESS (BY INDEX ROWID) OF 'HISTORIE'
71 70 AND-EQUAL
72 71 INDEX (RANGE SCAN) OF 'I_PRODUKT' (NON-UNI
QUE)
73 71 INDEX (RANGE SCAN) OF 'I_MYTECHOBJEKT' (NO
N-UNIQUE)
74 2 NESTED LOOPS
75 74 TABLE ACCESS (FULL) OF 'HISTORIE'
76 74 INDEX (UNIQUE SCAN) OF 'PK_FAHRZEUG' (UNIQUE)
Total reocrds in the Fahrzeug table : 757635
Total reocrds in the Historie table : 350
The query takes approximately 11721 ms to execute. Is there any way
I can optimize the above query? Any help in this regard is
very much appreciated.
Thanks and Regards,
Ranganath
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-- 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).Received on Thu Jan 09 2003 - 08:39:41 CST
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