Hello,
I have this user statement below which is very long in a 8.1.6.2
database.
Any ideas to optimize it is wellcome.
Best Regards
Philippe
**********************************
SELECT
PLT_LISTE_DES_AGENTS_PL97.SEXE,
PLT_FORMATION_AGENT_PL74.PL0PL009_COLLEGE,
count(PLT_FORMATION_AGENT_PL74.PL97_MATRICULE),
PLT_FORMATION_AGENT_PL74.DUR_TOT
FROM
PLT_LISTE_DES_AGENTS_PL97,
PLT_FORMATION_AGENT_PL74,
PLT_FORMATION_ACTION_PL73
WHERE
(PLT_LISTE_DES_AGENTS_PL97.MATRICULE = PLT_FORMATION_AGENT_PL74.PL97_MATRICULE)
AND (PLT_FORMATION_ACTION_PL73.ACTION = PLT_FORMATION_AGENT_PL74.PL73_ACTION and
PLT_FORMATION_ACTION_PL73.INDICE = PLT_FORMATION_AGENT_PL74.PL73_INDICE)
AND (
PLT_LISTE_DES_AGENTS_PL97.SEXE = 'M'
AND PLT_FORMATION_AGENT_PL74.COD_STAGIAIRE = 'O' ((INDEX CREATED)
AND PLT_FORMATION_ACTION_PL73.NO_ACTION LIKE 'F0%' ((PRIMARY KEY°
)
GROUP BY
PLT_LISTE_DES_AGENTS_PL97.SEXE,
PLT_FORMATION_AGENT_PL74.PL0PL009_COLLEGE,
PLT_FORMATION_AGENT_PL74.DUR_TOT
ORDER BY
PLT_LISTE_DES_AGENTS_PL97.SEXE,
PLT_FORMATION_AGENT_PL74.PL0PL009_COLLEGE
/
explain plan :**************************************
STATEMENT=MRrepFor TIMESTAMP= 12/02/01
OPERATION=SORT OPTION= ORDER BY
ID= 1 parentID= 0 POSITION= 1
MRrepFor 12/02/01
SORT GROUP BY
2 1 1
MRrepFor 12/02/01
NESTED LOOPS
3 2 1
MRrepFor 12/02/01
NESTED LOOPS
4 3 1
MRrepFor 12/02/01
TABLE ACCESS FULL
OBJECTOWNER=BOCONFID OBJECTNAME= PLT_FORMATION_AGENT_PL74
2
5 4 1
MRrepFor 12/02/01
TABLE ACCESS BY INDEX ROWID
BOCONFID PLT_LISTE_DES_AGENTS_PL97 1
6 4 2
MRrepFor 12/02/01
INDEX UNIQUE SCAN
BOCONFID PL97_PK UNIQUE
7 6 1
MRrepFor 12/02/01
TABLE ACCESS BY INDEX ROWID
BOCONFID PLT_FORMATION_ACTION_PL73 3
8 3 2
MRrepFor 12/02/01
INDEX RANGE SCAN
BOCONFID PL73_PK UNIQUE
9 8 1
MRrepFor 12/02/01
SELECT STATEMENT
CHOOSE
0
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