Relational and Dimensional Techniques
Claudia Imhoff Nicholas Galemmo Jonathan G. Geiger
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D E D I C AT I O N
Claudia: For all their patience and understanding throughout the years, this book is dedicated to David and Jessica Imhoff.
Nick: To my wife Sarah, and children Amanda and Nick Galemmo, fortheir understanding over the many weekends I spent working on this book. Also to my college professor, Julius Archibald at the State University of New York at Plattsburgh for instilling in me the science and art of computing.
Jonathan: To my wife, Alma Joy, for her patience and understanding of the time spent writing this book, and to my children, Avi and Shana, who are embarking on theirrespective careers and of whom I am extremely proud.
CO NTE NTS
Acknowledgments About the Authors
Introduction Overview of Business Intelligence BI Architecture What Is a Data Warehouse? Role and Purpose of the Data Warehouse The Corporate Information Factory Operational Systems Data Acquisition Data Warehouse Operational Data Store Data...