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Master Note: Overview of Database ControlFiles (Doc ID 1493674.1)

Last updated on MARCH 12, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.8 to 12.1.0.1 [Release 9.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Purpose

The purpose of this document is to provide an overview of the Database control file concepts.

Scope

 The details in this document initially applies to a non-RAC and non-dataguard Database setup.

Details

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In this Document
Purpose
Scope
Details
 Concepts
 Controlfile Contents
 Controlfile Structure
 Circular reuse records
 Noncircular reuse records
 ControlFile Parameters
 CONTROL_FILES
 CONTROL_FILE_RECORD_KEEP_TIME
 Controlfile Creation
 CREATE CONTROLFILE
 Troubleshooting after creating Controlfiles
 Checking for Missing or Extra Files
 Handling Errors during CREATE CONTROLFILE
 ControlFile Expansion
 Controlfile Enqueue
 Controlfile Data Dictionary Views
 12c Related:
 Controlfile wait Events
 Control file parallel write
 Control file sequential read
 Control file single write
 Controlfile Backups
 RMAN CONTROLFILE AUTOBACKUP
 BACKUP CONTROLFILE Clause
 Guidelines for Controlfiles
 Provide Filenames for the Control Files
 Multiplex Control Files on Different Disks
 Back Up Control Files
 Dropping Controlfiles
 Additional Resources
  Known Issues and Resolutions
References

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