Optimisation requête delete
Bonjour,
J'ai la requête suivante qui dure plus de 20 heures, j'ai essayé d'optimiser par l'ajout de hint, c'est identique :
Code:
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| BEGIN
LOOP
UPDATE purge_dealfront_intermediaires
SET status ='1'
WHERE status ='0'
AND rownum<=1000;
EXIT
WHEN SQL%ROWCOUNT = 0;
COMMIT;
DELETE
FROM eai_t_ver_dea_fo
WHERE idt IN
(SELECT idt
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_ver
WHERE idt IN
(SELECT idt_ver
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_tit
WHERE idt IN
(SELECT idt_tit
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_tie
WHERE idt IN
(SELECT idt_tie_brk
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_tie
WHERE idt IN
(SELECT idt_tie_dep
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_tie
WHERE idt IN
(SELECT idt_tie_ctp
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_tie
WHERE idt IN
(SELECT idt_tie_cl
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
DELETE
FROM eai_t_trc
WHERE idt_ver IN
(SELECT idt
FROM purge_dealfront_intermediaires
WHERE status = '1'
);
COMMIT;
UPDATE purge_dealfront_intermediaires
SET status='2'
WHERE status='1';
COMMIT;
END LOOP;
EXCEPTION
WHEN OTHERS THEN
ROLLBACK;
INSERT
INTO EAI_T_LOG_PURGE VALUES
(
'deafo/drop_intermediaires.sql',
'ERROR' ,
'Drop failed' ,
'DF' ,
SYSDATE
);
COMMIT;
RAISE;
END;
/ |
Auriez-vous une idée?
Merci
Bonne journée
Bibi
