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

Creating user-managed backups


At one point in the history of the Oracle database, there was no integrated tool with which the DBAs could back up and recover databases. The DBAs used manual methods to back up databases in a way that they could be safely recovered. Truthfully, these methods, known as user-managed backups, are used much less often today, due in large part to their low tolerance for human error. However, using the right procedures, user-managed backups produce all the proper output needed to recover a database.

Creating user-managed cold backups

To begin, we need to create a directory location for our user-managed backups. We will use the Windows platform for these examples, so we'll create a directory in the base of one of our system drives, in this example, the E:.

We'll first examine the process behind performing a user-managed offline backup. The certification exam also refers to this as a whole consistent backup, indicating that all datafiles have been closed by the operating...