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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

Disabling redo generation (NOLOGGING)


The NOLOGGING attribute tells Oracle that the operation being performed does not need to be recoverable in the event of a failure. In this case, the database will generate only a small set of metadata that is written to the redo log, and the operation will probably run faster. Oracle is relying on the user to recover the data manually in the event of any failure. In other words, the NOLOGGING option skips the generation of redo for the affected object, but will still log many things such as data dictionary changes caused by space management.

NOLOGGING operations

At the tablespace level, the LOGGING clause specifies the default LOGGING attribute for all tables, indexes, and partitions created in the tablespace and also for all objects subsequently created on it. When the tablespace LOGGING attribute is changed by the ALTER TABLESPACE statement, then all objects created after the ALTER statement will have the new LOGGING attribute; but be aware that all...

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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