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Oracle 11g Compression feature- Test case

Recently I did some test case in oracle 11g compression on 11.1.0.7 windows OS. I would like to share with you allSnippet on Compression:Oracle Table compression for OLTP Operations: 1.     Unique...

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Script to Collect DB Upgrade/Migrate Diagnostic - dbupgdiag.sql

Script to Collect DB Upgrade/Migrate Diagnostic Information (dbupgdiag.sql) [ID 556610.1]Recently I have found metalink note and it may be useful for database upgrade.This upgrade diag scripts will...

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db_file_multiblock_read_count in oracle 11g

Whenever we have faced performance issue, few questions suddenly came to our mind like …Why my index is not being used? Why my query is going to full table scan instead of index scan? Is there any...

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DB_Stats - dbms_stats.set_table_stats

Recently I had faced one performance issue related to DB statistics.Suddenly we have got CPU spike on database and found a query causing the CPU spike.Finally I started to Investigate.This query have...

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Oracle Total Recall – Flashback Data Archive - Oracle 11gR2 Feature

  Oracle Total Recall will help to keep the historical data in database.   Oracle Total Recall tracking the changes happen on database and keep this data’s in database based on our retention...

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