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MIN/MAX Optimization and Asynchronous Global Index Maintenance - Striving for Optimal Performance
| | www.bobbydurrettdba.com
Cardinality errors across joins | Bobby Durrett's DBA Blog
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| | We have been discussing query tuning at work and I've come back to an example of the Oracle optimizer choosing the wrong plan due to an error in its calculation of the number of rows returned...
| | www.dbaglobe.com
Donghua's Blog - DBAGlobe: Using "nonunique index to enforce uniqueness" is a good way?
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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.
| | 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.
| | connor-mcdonald.com
The APEX data dictionary - Learning is not a spectator sport
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| Anyone who has used APEX will know that in addition to the Builder UI, there is a comprehensive data dictionary for APEX-prefixed views to expose all the metadata associated with APEX applications and workspaces. SQL> select view_name 2 from dba_views 3 where owner = 'APEX_240200' 4 and view_name like 'APEX%' 5 order by 1;...