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SQLTXPLAIN under Oracle 12c | Mohamed Houri's Oracle Notes
| | carlos-sierra.net
SQLTXPLAIN 101 | Carlos Sierra's Tools and Tips
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| | SQLTXPLAIN, also know as SQLT, is a tool that helps to diagnose SQL statements performing poorly in an Oracle database. This tool is free to download and use. You only need to have access to My Oracle Support (MOS) and search for Document Id: 215187.1. Q: What do you get from this tool? A: In...
| | blog.toadworld.com
Why my execution plan has not been shared - Part III
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| | Why my execution plan has not been shared - Part III oracle
| | www.dbaglobe.com
Donghua's Blog - DBAGlobe: Subquery Performance Tuning (Part 2, NOT IN and NOT EXISTS))
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| | A blog about on new technologie. Hands-on note about Hadoop, Cloudera, Hortonworks, NoSQL, Cassandra, Neo4j, MongoDB, Oracle, SQL Server, Linux, etc.
| | mahmoudhatem.wordpress.com
Adaptive Dynamic Sampling : DYNAMIC_SAMPLING_RESULT & STALE_PERCENT | Hatem Mahmoud's blog
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| Since oracle 12.2.0.1 Adaptive Dynamic Sampling result are stored inside SPD as a special directive type "DYNAMIC_SAMPLING_RESULT". This will allow the result of ADS to be persisted on disk,thus it will survive memory flush and database restart.For more detailed info please check Mauro Pagano blog Post Something new about SQL Plan Directives and 12.2 We...