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You are here		www.bobbydurrettdba.com Cardinality errors across joins \| Bobby Durrett's DBA Blog
\|	\|	www.dbaglobe.com Donghua's Blog - DBAGlobe: Subquery Performance Tuning (Part 1, IN, EXISTS and COUNT >0)	7.6 parsecs away Travel
\|	\|	A blog about on new technologie. Hands-on note about Hadoop, Cloudera, Hortonworks, NoSQL, Cassandra, Neo4j, MongoDB, Oracle, SQL Server, Linux, etc.	7.6 parsecs away Travel
\|	\|	www.dbaglobe.com Donghua's Blog - DBAGlobe: Using "nonunique index to enforce uniqueness" is a good way?	7.8 parsecs away Travel
\|	\|	A blog about on new technologie. Hands-on note about Hadoop, Cloudera, Hortonworks, NoSQL, Cassandra, Neo4j, MongoDB, Oracle, SQL Server, Linux, etc.	7.8 parsecs away Travel
\|	\|	leonotes.wordpress.com ????(transitive closure)????????(Constraint-Generated Predicates) \| LEO Notes	8.2 parsecs away Travel
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\|	\|	dincosman.com Direct Path Read Decision in Oracle: Beyond the Optimizer - Osman's DBlog	68.8 parsecs away Travel
\|		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....	68.8 parsecs away Travel