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performance strategies for many joins

From: Steve Wicklund <savant_7_at_hotmail.com>
Date: 31 Jan 2003 05:52:43 -0800
Message-ID: <5de96e4e.0301310552.6659fb89@posting.google.com>


hello all;
 I have utility being written that must join seven table in order to produce a report-style file out on oracle 8. One table is joined with seven others to bring in a siginifact amount of conected data such as the customers phone, address, etc. Also, the 'main' table as it were, must be Unioned with nearly identicle table that contains older records. My question is this. Are there any 'general' strategies for improving the performance of the query? I am not looking for someone to write the sql again, just some overall concepts that can be adhered to that tend to help with speed of execution. The design of the schema is not up for change, so that is not an option. All of the columns involved in the join have indexes. Just looking for a few 10,000 foot level concepts for making a query smarter/faster.

Thanks! Received on Fri Jan 31 2003 - 07:52:43 CST

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