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Monthly Archives: February 2023

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How to rename Duplicate datafile names in Oracle??

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11g database - Datafile created with extra blank space similar to existing datafile. Please note that oracle database will not allow exact datafile name,...

How To Modify AWR Snapshot Setting ??

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We can change the snap_interval and retention period for the automatic awr snapshot collection, using modify_snapshot_settings function. The default settings for ‘interval’ and ‘retention’ are...
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ORA-12101: Materialized View Issue

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During 19c Upgrade, Materialized view creation which is from a pre-built base table is showing COMPILATION ERROR without any specific error messages. Base table column...

ORA-39358: Export Dump File Version 12.1.0.2.0 Not Compatible With Target Version 11.2.0.4.0 

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After upgrading a database from 11.2.0.4 to 12.1.0.2, the following errors are reported executing a datapump import process: Import: Release 12.1.0.2.0 - Production Copyright...

RAID (Redundant Array of Inexpensive disks)

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RAID stands for Redundant Array of Inexpensive Disks which was later interpreted to Redundant Array of Independent Disks. This technology is now used in...
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What is Checkpoint ?

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A checkpoint is an operation that Oracle performs to ensure data file consistency. When a checkpoint occurs, Oracle ensures all modified buffers are written...
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Grid Infrastructure Files and Management Database in RAC

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Oracle 19c Grid Infrastructure requires certain files and provides tools to access each Standalone Cluster . It should have a Grid Infrastructure Management Repository...