Increasing pga_aggregate_target helps in improving impdp performance
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Oracle Performance Interview Question and Answer
1. Can I use this FAQ to solve all Oracle performance problems? Analyzing database performance is a complex subject. This FAQ does not claim to provide the solution for all performance problems...
Improve performance of SELECT
As you all know, it is important to use as many key fields as possible in WHERE clauses of SELECT statements. Sometimes you are not sure about the value of some key fields. They seem to be empty...