Book Image

Oracle Database 11g : Underground Advice for Database Administrators

By : April Sims
Book Image

Oracle Database 11g : Underground Advice for Database Administrators

By: April Sims

Overview of this book

Today DBAs are expected to deploy and manage large databases with quality service and little to no downtime. The DBA's main focus is on increasing productivity and eliminating idle redundancy throughout the enterprise. However, there is no magic set of best practices or hard and fast rules that DBAs need to follow, and this can make life difficult. But if DBAs follow some basic approaches and best practices, tasks can be performed more efficiently and effectively.This survival guide offers previously unwritten underground advice for DBAs. The author provides extensive information to illuminate where you fit in, and runs through many of the tasks that you need to be watchful of, extensively covering solutions to the most common problems encountered by newcomers to the world of Oracle databases.The book will quickly introduce you to your job responsibilities, as well as the skills, and abilities needed to be successful as a DBA. It will show you how to overcome common problems and proactively prevent disasters by implementing distributed grid computing—scalable and robust—with the ability to redeploy or rearchitect when business needs change. Reduce downtime across your enterprise by standardizing hardware, software, tools, utilities, commands, and architectural components.This book will also help you in situations where you need to install Oracle Database 11g or migrate to new hardware making it compliant with a Maximum Availability Architecture. By the end of this book you will have learned a lot and gained confidence in your abilities. You will be armed with knowledge as to which tools are best used to accomplish tasks while proactively moving towards an automated environment.
Table of Contents (14 chapters)
Oracle Database 11g—Underground Advice for Database Administrators
Credits
About the author
About the reviewers
Preface
Index

Summary


As a DBA that has been investigating time and effort in the standby technology since Oracle Database version 8i, it has been interesting to see the improvements along the way. Physical standbys have proven standard from the very first version, but the older implementation required the DBA to create their own script to manually transfer the archived redo logs from the primary database to the standby. Since 10gR2, all standby technology has improved dramatically from the early versions. Redo Apply is now fully automated, resilient, and SSL-encrypted. SQL Apply has matured enough that a logical standby can be depended on if a DBA takes the time to follow the Oracle-recommended tuning steps.

In 10gR2, most of the scenarios that were previously highly detailed manual steps have been shortened to a single command using the Data Guard command-line utility in 11g. Oracle has extended the functionality of using Data Guard for other reasons than just disaster recovery with several optional...