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Jul 29, 2014

Oracle Analytic functions

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Analytic functions compute an aggregate value based on a group of rows. They differ from aggregate functions in that they return multiple r...
Apr 20, 2014

Oracle Baseline

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Oracle Baseline ...
Dec 31, 2013

Buffer Aging , LRU Lists,Dirty List & DBWR

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All Oracle data is obtained by users from the buffer cache.The basic purpose of the cache is to minimize physical disk I/O by holding (buff...

PGA & SGA

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PGA stands for Process Global Area which is also known as Program Global Area. It is called global area because is keeps information which...
Dec 20, 2013

Row chaining & Migration

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ANALYZE TABLE {BAD_TABLE} LIST CHAINED ROWS INTO {MY_CHAINING_TABLE}; For More Reference
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