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September 8, 2008 02:12am pdt
 
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Oracle on delete cascade slow performance

Tags: Oracle
I have about 5 tables, and they have have FK constraints on a main parent table.  When I delete from the parent table it can take up to 6 minutes for the query to complete.  All FK's have indexes.  Number of records is maybe 200,000 for one delete.

Any suggestions for improving performance?  Any suggestions for how I can determine what is taking so long?  I have Toad and SQL plus but I'm not a dba so no experience with optimizing, tuning, etc.
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Question Stats
Zone: Database
Question Asked By: jasonsbytes
Solution Provided By: dqmq
Participating Experts: 4
Solution Grade: B
Views: 135
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