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nenadnoveljic.com | ||
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dincosman.com
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| | | | | 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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www.dbaglobe.com
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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. | |
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jonathanlewis.wordpress.com
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| | | | | A couple of weeks ago, having just arrived home from Spain, I got a phone call in Heathrow airport from an old client that I hadn't seen for about 18 months. They had a problem; as far as they could tell a business critical query had suddenly stopped using an index and was doing a... | |
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blog.yannickjaquier.com
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| | | SQL Plan Management feature overview through concrete example and its interactions with Adaptive Cursor Sharing (ACS) and SQL Profile | ||
