Database DataWarehousing (MOSC)

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slow running query

edited Sep 26, 2015 10:01AM in Database DataWarehousing (MOSC) 2 commentsAnswered

Today had an issue for slow running query for one of our warehouse database, where tables and indexes has latest stats yesterday no new data load, "dbms_xplan.display_awr" lists multiple explain plans and the query is using a same plan generated sometime back on 2014, however a latest plan also do exists which was generated on Aug/2015. Query was same with no change.

The same query ran fine yesterday but slow today. Please suggest if we do have any option like how to check what execution plan the query used yesterday or day before yesterday ?

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