Book Image

Oracle Warehouse Builder 11g R2: Getting Started 2011

Book Image

Oracle Warehouse Builder 11g R2: Getting Started 2011

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 that have all been updated for the new Fusion Client Platform interface in 11gR2, alongside numerous tips and hints not covered by the official documentation. You’ll finish up with a brand new chapter on code templates where you’ll implement a complete mapping using JDBC connectivity and code template mappings.
Table of Contents (17 chapters)
Oracle Warehouse Builder 11gR2: Getting Started 2011
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Creating a cube in OWB


Now that we have our dimensions defined, we have one last step to cover and our design for our data warehouse will be complete. We need to define our cube, which is where our measures will be stored—the facts that users will want to query. We discussed the design of our cube and agreed that we would store two measures, namely the sales amount and the number of items sold. We have already designed our three dimensions, and their links and measures will go together to make up the information stored in our cube.

There is a wizard available to us for creating a cube that we will make use of to ease our task. So let's start designing the cube with the wizard.

Creating a cube with the wizard

We will start the wizard in a similar manner to how we started up the Dimension wizard. Right-click on the Cubes node under the ACME_DWH module in the Project Navigator, select New Cube to launch the cube-creation wizard. The first screen will be the welcome screen, which will summarize...