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Oracle Database 12c Backup and Recovery Survival Guide

You're reading from   Oracle Database 12c Backup and Recovery Survival Guide A comprehensive guide for every DBA to learn recovery and backup solutions

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Product type Paperback
Published in Sep 2013
Publisher Packt
ISBN-13 9781782171201
Length 440 pages
Edition 1st Edition
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Toc

Table of Contents (22) Chapters Close

Oracle Database 12c Backup and Recovery Survival Guide
Credits
About the Author
Acknowledgement
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
1. Understanding the Basics of Backup and Recovery 2. NOLOGGING Operations FREE CHAPTER 3. What is New in 12c 4. User-managed Backup and Recovery 5. Understanding RMAN and Simple Backups 6. Configuring and Recovering with RMAN 7. RMAN Reporting and Catalog Management 8. RMAN Troubleshooting and Tuning 9. Understanding Data Pump 10. Advanced Data Pump 11. OEM12c and SQL Developer Scenarios and Examples – A Hands-on Lab Index

Repairing NOLOGGING changes on physical and logical standby databases


After a NOLOGGING operation on the primary is detected, it is recommended to create a backup immediately if you want to recover from this operation in the future. However, there are additional steps required if you have an existing physical or logical standby database. Executing these steps is crucial if you want to preserve the data integrity of your standby databases.

For a physical standby database, Data Guard's Redo Apply process will process the invalidation redo and mark the corresponding data blocks as corrupted. Follow these steps to reinstate the relevant datafiles:

  1. Stop Redo Apply (RECOVER MANAGED STANDBY DATABASE CANCEL).

  2. Take the corresponding datafile(s) offline (ALTER DATABASE DATAFILE <datafile_name> OFFLINE DROP;).

  3. Start Redo Apply (RECOVER MANAGED STANDBY DATABASE DISCONNECT).

  4. Copy the appropriate backup of affected datafiles over from the primary database (for example, use RMAN to backup datafiles and...

You have been reading a chapter from
Oracle Database 12c Backup and Recovery Survival Guide
Published in: Sep 2013
Publisher: Packt
ISBN-13: 9781782171201
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