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The Data Warehouse ETL Toolkit: Practical Techniques for Extracting, Cleaning, Conforming, and Delivering Databy Ralph Kimball
Synopses & Reviews
The single most authoritative guide on the most difficult phase of building a data warehouse
The extract, transform, and load (ETL) phase of the data warehouse development life cycle is far and away the most difficult, time-consuming, and labor-intensive phase of building a data warehouse. Done right, companies can maximize their use of data storage; if not, they can end up wasting millions of dollars storing obsolete and rarely used data. Bestselling author Ralph Kimball, along with Joe Caserta, shows you how a properly designed ETL system extracts the data from the source systems, enforces data quality and consistency standards, conforms the data so that separate sources can be used together, and finally delivers the data in a presentation-ready format.
Serving as a road map for planning, designing, building, and running the back-room of a data warehouse, this book provides complete coverage of proven, timesaving ETL techniques. Beginning with a quick overview of ETL fundamentals, it then looks at ETL data structures, both relational and dimensional. The authors show how to build useful dimensional structures, providing practical examples of techniques.
Along the way youll learn how to:
Book News Annotation:
The extract, transform, and load (ETL) phase of the data warehouse development life cycle is the most difficult phase of building a data warehouse. Kimball, a speaker on data warehousing, and Caserta, a data warehousing consultant, demonstrate the benefits of a properly designed ETL system and describe techniques for planning, designing, building, and running the "back room" of a data warehouse, covering both relational and dimensional ETL data structures.
Annotation ©2004 Book News, Inc., Portland, OR (booknews.com)
Provides solutions to the most labour- and time-intensive part of data warehouse development - the Extract, Transform, and Load (ETL) process.
About the Author
RALPH KIMBALL, PhD, founder of the Kimball Group, has been a leading visionary in the data warehousing industry since 1982 and is one of today’s best-known speakers and educators. He is the author of several bestselling titles published on data warehousing, including The Data Warehouse Toolkit (Wiley).
JOE CASERTA is the founder of Caserta Concepts, LLC, a data warehousing consulting firm. He writes frequently for print and online magazines, and is an active contributor to DWList, the major online community for data warehousing professionals.
Table of Contents
About the Authors.
Part I: Requirements, Realities, and Architecture.
Chapter 1: Surrounding the Requirements.
Chapter 2: ETL Data Structures.
Part II: Data Flow.
Chapter 3: Extracting.
Chapter 4: Cleaning and Conforming.
Chapter 5: Delivering Dimension Tables.
Chapter 6: Delivering Fact Tables.
Part III: Implementation and operations.
Chapter 7: Development.
Chapter 8: Operations.
Chapter 9: Metadata.
Chapter 10: Responsibilities.
Part IV: Real Time Streaming ETL Systems.
Chapter 11: Real-Time ETL Systems.
Chapter 12: Conclusions.
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