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Slow Query with an Empty table with inner join

edited Jan 15, 2015 10:02AM in SQL Performance (MOSC) 10 commentsAnswered

Hello.

With Oracle DB Standard 11.2g (but also with enterprise edition) we have a strange problem with a kind of query. A query with 6 table in inner join is strangely slow. One of that table is empty. Statistics are updated.

We are not professional DBA, we are developer and our solution is compatible also with Oracle. With other DBMS with haven't this kind of problem (in same situation).

We  don't know what we have to do in order to enhanche performance, but we don't like to insert "Optimizer Hints"...

Thank you.

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