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savvinov.com | ||
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kerryosborne.oracle-guy.com
[AI summary] The article discusses techniques for using SQL Profiles to influence query optimization in Oracle databases, building on previous methods like outline switching. |
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rwijk.blogspot.com
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nenadnoveljic.com
A frequently executed SQL causes problems with the initial incremental statistics calculation. |
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dincosman.com
The performance issue with an SQL query was resolved by using the /*+ PARALLEL(2) */ hint, reducing execution time from 180-200 seconds to milliseconds. The decision to perform a direct read from disk to memory instead of reading blocks from disk was made by the database engine and is controlled by the hidden "_serial_direct_read" parameter.... |
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