Foreword
Oracle GoldenGate is a product that covers many use cases in the business of data
replication. It is not only useful for classical distributed databases, it is also useful
for High Availability Architectures and especially for Data Warehouse and Decision
Support Systems. Thus, the variety of techniques and methods spreads from
unidirectional environments for query ofoading/reporting to bidirectional or Peer-
to-Peer architectures in an active-active fashion. Besides this, Oracle GoldenGate is
not only available for heterogeneous Oracle-to-Oracle databases, but it also scales in
heterogeneous non Oracle database environments which is also one topic in the Data
Warehouse business. The exibility of the product is amazing and the functionality
manages a wide spectrum such as ltering, performing transformations, event
handling, and many other options.
I am happy that John Jeffries summarized the main topics of Oracle Golden Gate
in this book. Both parts, conguration & implementation as well as monitoring
and performance tuning/troubleshooting, is described for developers and
administrators. The book does start from a common architectural overview, shows
up standard implementation steps, and explains how to manage the distributed
environment.
John Jeffries has been an expert of Oracle databases for years. Besides the knowledge
of distributed databases, his skills cover a wide area of the Oracle core technology.
So, he is not only able to discuss the topics individually, but he also puts the
individual pieces together that rounds up the overall common architecture. This
work is very valuable as it is raised from a fundamental practical experience.
Volker Kuhr
Oracle Advanced Customer Support (ACS)
Team Leader for Distributed Databases
