SQL Performance (MOSC)

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Self Join

edited Aug 8, 2014 5:00AM in SQL Performance (MOSC) 2 commentsAnswered

I am trying to join a 30M row table with it self, ORACLE is choosing HASH JOin with FULL Table scan, the column on which I am joining has an index. How to fasten the query? Right now it is taking 25 mins to return back the results??

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