Tuning an sql from a vendor product without modifying the sql statement

Hi,
we have a vendor product which generates SQL Statement. For one query, we get response in 15 seconds. But users are asking if we can bring it down to 5 seconds. Limitation is query can't be changed. It used around 10 to 12 tables and bit complex query.
What kind of options could be evaluated if we want to improve performance of a query (Not sure if it could be ever reduced to 5 seconds)
without making any change to the query.
Database Version: Oracle 10.2.0.4
Thanks,
Sarayu

807778 wrote:
Hi,
we have a vendor product which generates SQL Statement. For one query, we get response in 15 seconds. But users are asking if we can bring it down to 5 seconds. Limitation is query can't be changed. It used around 10 to 12 tables and bit complex query.
What kind of options could be evaluated if we want to improve performance of a query (Not sure if it could be ever reduced to 5 seconds)
without making any change to the query.
Database Version: Oracle 10.2.0.4
Thanks,
SarayuI'd go through the standard stuff of "is there an index that can help?", "should these tables be in a cluster?" etc.. Problem there is that you might degrade other operations, and you might break your application support contract by modifying the schema. Even adding a materialized view could do that.

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Tuning an sql from a vendor product without modifying the sql statement

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