Book Image

Oracle Goldengate 11g Complete Cookbook

By : Ankur Gupta
Book Image

Oracle Goldengate 11g Complete Cookbook

By: Ankur Gupta

Overview of this book

Oracle Goldengate 11g Complete Cookbook is your complete guide to all aspects of Goldengate administration. The recipes in this book will teach you how to setup Goldengate configurations for simple and complex environments requiring various filtering and transformations. It also covers various aspects of tuning and troubleshooting the replication setups using exception handling, custom fields, and logdump utility.The book begins by explaining some basic tasks like Installation and Process groups setup. You will then be introduced to some further topics including DDL replication and various options to perform Initial Loads. You will then learn some advanced administration tasks such as Multi Master replication setup and conflict resolution. Further recipes, contain the cross platform replication and high availability options for Goldengate.
Table of Contents (16 chapters)
Oracle GoldenGate 11g Complete Cookbook
About the Author
About the Reviewers

Undoing the applied changes using the reverse utility

Part of the job of setting a GoldenGate replication consists of defining what to replicate. Once these rules are in place, GoldenGate processes scan the redo data for any records for the replicated tables. Most of the time, these changes are intended and generated by some application. However, sometimes some data updates are performed in the source environment by mistake and you would ideally not want them to be replicated to the target environment. In such scenarios, the administrator might want to roll back the changes performed. You can perform such tasks using the latest database technologies, for example, flashback. However, it is very difficult to roll back only a set of transactions from the database especially when you have applied complex filtering in the GoldenGate configuration. In such cases, you need another approach which will reverse the changes that were applied using GoldenGate. GoldenGate provides a reverse utility using...