Book Image

Oracle Warehouse Builder 11g: Getting Started

Book Image

Oracle Warehouse Builder 11g: Getting Started

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

Generating


This step can happen in conjunction with the validation step as we've discussed previously, but the Warehouse Builder does provide a separate menu entry to select for generating. We will discuss it here to see what it's all about. Let's talk about generation; and no, we're not talking about baby boomers, Gen X-ers, Gen Y-ers, or whatever they come up with for future generations. Here we're talking about the other meaning of the word, which is the act or process of generating. Dictionary.com says to generate means to bring into existence; cause to be; produce. With the generation step in the Warehouse Builder, we are going to bring into existence the code that we need to use to build and load our data warehouse. The objects—dimensions, cube, tables, and so on—will have SQL Data Definition Language (or DDL) statements produced, which when executed will build the objects in the database. The mappings will have the PL/SQL code produced that when it's run, will load the objects. The...