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 www.bobbydurrettdba.com
Alerting on plans that change for the worse | Bobby Durrett's DBA Blog
| | www.dbaglobe.com
Donghua's Blog - DBAGlobe: Subquery Performance Tuning (Part 1, IN, EXISTS and COUNT >0)
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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.
| | sqlmaria.com
How to determine which view is the right view to use in Oracle?
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| | Database views are a handy tool to help obfuscate complex joins from developers and analysts. However, knowing which view to use can be tricky, especially when faced with multiple views with simila...
| | kerryosborne.oracle-guy.com
Kerry Osborne's Oracle Blog » Blog Archive » Explain Plan Lies
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| | dioncho.wordpress.com
Interesting case of the restriction of global hints | Dion Cho - Oracle Performance Storyteller
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| One of my colleagues sent following test case, of which he couldn't control the join order with hints. 1. Create objects - table t1, t2 and t3 2. Now Let's set the join order as T1->T2->T3, using global hints convention. But it seems that Oracle does not work as expected. It really seems that the...