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Poor performance when updating Promotion Event

edited Aug 17, 2012 1:48AM in Demantra Solutions - EBS (MOSC) 5 commentsAnswered
When we update promotion event, it's creating a temporary table and below update statement is taking longer time to complete. Wait event reported is "latch: cache buffers".We are running on 7.3.0.1 Demantra against 11.2.0.3 Database.Explain plan shows correct index usage. Any fix for this?

UPDATE PROMOTION_DATA SET (CASE_OI,PROMO_PRICE,LAST_UPDATE_DATE) = (SELECT :1 CASE_OI
,:2 PROMO_PRICE
,SYSTIMESTAMP LAST_UPDATE_DATE
FROM T_UPDATE_283_1344923078455 T_UPDATE_LIST
WHERE PROMOTION_DATA.PROMOTION_ID = T_UPDATE_LIST.PROMOTION_ID
AND PROMOTION_DATA.SALES_DATE = T_UPDATE_LIST.SALES_DATE
AND PROMOTION_DATA.LOCATION_ID = T_UPDATE_LIST.LOCATION_ID

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