Book Image

Oracle Warehouse Builder 11g: Getting Started

By : Bob Griesemer
Book Image

Oracle Warehouse Builder 11g: Getting Started

By: Bob Griesemer

Overview of this book

In today's economy, businesses and IT professionals cannot afford to lag behind the latest technologies. Data warehousing is a critical area to the success of many enterprises, and Oracle Warehouse Builder is a powerful tool for building data warehouses. It comes free with the latest version of the Oracle database. Written in an accessible, informative, and focused manner, this book will teach you to use Oracle Warehouse Builder to build your data warehouse. Covering warehouse design, the import of source data, the ETL cycle and more, this book will have you up and running in next to no time. This book will walk you through the complete process of planning, building, and deploying a data warehouse using Oracle Warehouse Builder. By the book's end, you will have built your own data warehouse from scratch. Starting with the installation of the Oracle Database and Warehouse Builder software, this book then covers the analysis of source data, designing a data warehouse, and extracting, transforming, and loading data from the source system into the data warehouse. You'll follow the whole process with detailed screenshots of key steps along the way, alongside numerous tips and hints not covered by the official documentation.
Table of Contents (15 chapters)
Oracle Warehouse Builder 11 Getting Started
Credits
About the Author
About the Reviewers
Preface
Index

Data warehouse design in OWB


The Warehouse Builder contains a number of objects, which we can use in designing our data warehouse, that are either relational or dimensional. OWB currently supports designing a target schema only in an Oracle database, and so we will find the objects all under the Oracle node in the Project Explorer. Let's launch Design Center now and have a look at it. But before we can see any objects, we have to have an Oracle module defined to contain the objects. If you've been following along and working through the examples in this book, so far you should have one module already defined for the ACME web site orders database—ACME_WS_ORDERS. We created this in the last chapter when we imported our metadata from that source. If that is the case, our Project Explorer window will look similar to the following:

Creating a target user and module

We need a different module to create our target objects in. So before going any further, let's create a new module in the Project Explorer...