Book Image

OCA Oracle Database 11g: Database Administration I: A Real-World Certification Guide

Book Image

OCA Oracle Database 11g: Database Administration I: A Real-World Certification Guide

Overview of this book

Oracle Database Server is the most widely used relational database in the world today. This book gives you the essential skills to master the fundamentals of Oracle database administration and prepares you for Oracle DBA certification."OCA Oracle Database 11g: Database Administration I: A Real-World Certification Guide" prepares you to master the fundamentals of Oracle database administration using an example driven method that is easy to understand. The real world examples will prepare you to face the daily challenges of being a database administrator.Starting with the essentials of why databases are important in today's information technology world and how they work, you are then guided through a full, customized installation of the Oracle software and creating your own personal database. We then examine fundamental concepts of Oracle, including architecture, storage structures, security, performance tuning, networking, and instance management. Finally, we take an in-depth look at some of the most important concepts in the daily life of an Oracle DBA - backup, recovery, and data migration."OCA Oracle Database 11g: Database Administration I: A Real-World Certification Guide" provides you with the skills you need in order to become a successful Oracle DBA, both for certification and real life tasks.
Table of Contents (24 chapters)
OCA Oracle Database 11g: Database Administration I: A Real-World Certification Guide
Credits
Foreword
About the Author
About the Reviewer
www.packtpub.com
Preface
Index

Performing RMAN complete recoveries


The process for performing a complete recovery in RMAN involves two operations, namely restore and recover. Restore is the process of restoring the lost files from backup. Recover is the process of applying the changes from the archivelogs and redo logs. So, in order for a complete recovery to occur, both restore and recover must be performed in that order. In this section, we'll examine the process of complete recovery using RMAN. As a side note, although user-managed backups are covered on the DBA I exam, user-managed recoveries are not, even though they are possible. The actual syntax for user-managed recovery is very similar to that of RMAN, although it is performed in SQL*Plus instead of in the RMAN executable.

Performing datafile-level RMAN complete recovery

In the case of the loss of a non-SYSTEM datafile, we can use RMAN to recover the datafile without disturbing any other database files. As we will see, we can also do this while the rest of...