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Oracle Database 12c Backup and Recovery Survival Guide

Oracle Database 12c Backup and Recovery Survival Guide

4.8 (10)
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Oracle Database 12c Backup and Recovery Survival Guide

Oracle Database 12c Backup and Recovery Survival Guide

4.8 (10)

Overview of this book

The three main responsibilities of a successful DBA are to ensure the availability, recoverability, and performance of any database. To ensure the recoverability of any database, a DBA needs to have a strong backup and recovery skills set. Every DBA is always looking for a reference book that will help them to solve any possible backup and recovery situation that they can come across in their professional life. Oracle Database 12c Backup and Recovery Survival Guide has the unique advantage to be a reference to all Oracle backup and recovery options available, making it essential for any DBA in the world. If you are new to Oracle Database, this book will introduce you to the fantastic world of backup and recovery that is vital to your success. If you are an experienced DBA, this book will become a reference guide and will also help you to learn some possible new skills, or give you some new ideas you were never aware about. It will also help you to easily find the solution to some of the most well known problems you could find during your career as a DBA. This book contains useful screenshots, scripts, and examples that you will find more than useful. Most of the books currently available in the market concentrate only on the RMAN utility to backup and recovery. This book will be an exception to the rule and will become a must-have reference, allowing you to design a real and complete backup and recovery strategy. It covers the most important topics on Oracle database such as backup strategies, Nologging operations, new features in 12c, user managed backups and recoveries, RMAN (including reporting, catalog management, troubleshooting, and performance tuning), advanced data pump, Oracle Enterprise Manager 12c and SQL Developer. "Oracle Database 12c Backup and Recovery Survival Guide" contains everything a DBA needs to know to keep data safe and recoverable, using real-life scenarios.
Table of Contents (22 chapters)
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Oracle Database 12c Backup and Recovery Survival Guide
Credits
About the Author
Acknowledgement
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Downgrading an Oracle Database


You can also use Data Pump to downgrade an Oracle Database; for example, move all data and metadata from Oracle 12.1 to a database using 11.2.0.3.

To achieve this goal, you need to obtain a downward compatible dump file by setting the export (expdp) parameter VERSION to 11.2.0.3 (the target database release) as shown in the following command:

$ expdp fcomunoz/alvarez@pdborcl directory=datapump dumpfile=version_full_06192013.dmp full=y version=11.2.0.3

Note

The import utility (impdp) cannot read dump files created by a later release unless it was created using the VERSION parameter to set the release number of the target database.

This is the error message I got when trying to import data exported from a 12.1.0 database into an 11.2.0.3 database without using the VERSION parameter when executing the export operation:

Import: Release 11.2.0.3.0 - Production on Wed Jun 19 15:57:58 2013

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved...

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