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Star Schema The Complete Reference
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Kurzbeschreibung
This is the definitive guide to dimensional design for your data warehouse. Learn the best practices of dimensional design. "Star Schema: The Complete Reference" offers in-depth coverage of design principles and their underlying rationales. Organized around design concepts and illustrated with detailed examples, this is a step-by-step guidebook for beginners and a comprehensive resource for experts. This all-inclusive volume begins with dimensional design fundamentals and shows how they fit into diverse data warehouse architectures, including those of W.H. Inmon and Ralph Kimball. The book progresses through a series of advanced techniques that help you address real-world complexity, maximize performance, and adapt to the requirements of BI and ETL software products. You are furnished with design tasks and deliverables that can be incorporated into any project, regardless of architecture or methodology. Master the fundamentals of star schema design and slow change processing. Identify situations that call for multiple stars or cubes. Ensure compatibility across subject areas as your data warehouse grows. Accommodate repeating attributes, recursive hierarchies, and poor data quality. Support conflicting requirements for historic data. Handle variation within a business process and correlation of disparate activities. Boost performance using derived schemas and aggregates. Learn when it's appropriate to adjust designs for BI and ETL tools.
Über den Autor
Christopher Adamson is the founder of Oakton Software LLC and a faculty member at The Data Warehousing Institute. He works with customers in all industries to establish data warehousing strategies, define and prioritize projects, and design solutions. Chris has taught dimensional design to thousands of students worldwide, and has written numerous books and articles.
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Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis
Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis
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11 von 11 Kunden fanden die folgende Rezension hilfreich
Excellent reference guide
27. September 2010
Format:Taschenbuch
This is an excellent reference guide on dimensional modeling. The book is chock full of examples (very comprehensive examples), and it is written in a very clear to the point writing style. I found myself highlighting passages, and enjoyed reading the advanced techniques such as on multi-valued dimensions and the various ways of managing history. This book assumes you know the basics of data modeling. (If you need the basics, I would make a completely unbiased recommendation for my book, Data Modeling Made Simple).
What I also like about this book is that it is architecture-independent and Chris Adamson's techniques work for various data warehouse architectures and he explains how it fits in with the more common architectures of the Hub and Bus.
I also very much appreciated the "Further Reading" sections at the end of each chapter.
What I also like about this book is that it is architecture-independent and Chris Adamson's techniques work for various data warehouse architectures and he explains how it fits in with the more common architectures of the Hub and Bus.
I also very much appreciated the "Further Reading" sections at the end of each chapter.
4 von 4 Kunden fanden die folgende Rezension hilfreich
A Definitive and Important Dimensional Design Guide - Beautifully Written
8. Oktober 2010
Format:Taschenbuch
I always been a great fan of Chris Adamson's writing - and "Star Schema - the Complete Reference" further reinforces this admiration.
The text is a model of clarity, and the book's ideas are organized and presented in a way that rewards the reader with well-chosen examples of escalating dimensional elegance and power as progressively more advance concepts are introduced. Chris deftly and wisely avoids investing too much ink in philosophical discussions of data warehousing architectures, by (correctly) pointing out that dimensional models are universally embraced by all thought-leaders for the "last mile" presentation of information to users. So we best model them correctly - regardless of the upstream plumbing that feeds them.
All of the great dimensional design techniques that we've come to expect from Chris are presented here with added depth and context- including truly great materials on modeling each of the fact table types, and brilliant design approaches for hierarchies and aggregates. But I also appreciate the fact that "Star Schema" bravely addresses really tough dimensional design challenges (multi-valued dimensions, factless facts, derived schemas, and many others) that too often confound and frustrate mere mortal (us) practitioners in the field.
Chris has managed to produce a truly practical dimensional data warehouse design book that is at once irrefutably comprehensive, empowering, and yet eminently readable - a very tough balance to strike. Many thanks and congratulations to him - this is a wonderful and important contribution to the field.
Jim Stagnitto
Llumino, Inc. ([...]), Caserta Concepts ([...])
The text is a model of clarity, and the book's ideas are organized and presented in a way that rewards the reader with well-chosen examples of escalating dimensional elegance and power as progressively more advance concepts are introduced. Chris deftly and wisely avoids investing too much ink in philosophical discussions of data warehousing architectures, by (correctly) pointing out that dimensional models are universally embraced by all thought-leaders for the "last mile" presentation of information to users. So we best model them correctly - regardless of the upstream plumbing that feeds them.
All of the great dimensional design techniques that we've come to expect from Chris are presented here with added depth and context- including truly great materials on modeling each of the fact table types, and brilliant design approaches for hierarchies and aggregates. But I also appreciate the fact that "Star Schema" bravely addresses really tough dimensional design challenges (multi-valued dimensions, factless facts, derived schemas, and many others) that too often confound and frustrate mere mortal (us) practitioners in the field.
Chris has managed to produce a truly practical dimensional data warehouse design book that is at once irrefutably comprehensive, empowering, and yet eminently readable - a very tough balance to strike. Many thanks and congratulations to him - this is a wonderful and important contribution to the field.
Jim Stagnitto
Llumino, Inc. ([...]), Caserta Concepts ([...])
3 von 3 Kunden fanden die folgende Rezension hilfreich
Everything you need to know
25. Mai 2012
Format:Taschenbuch
Chris does it again, this time with perhaps the most comprehensive and easy to follow reference guides to dimensional modeling. The book expertly traverses fundamentals of star schemas through sophisticated concepts like degenerate dimensions. And Chris eschews the usual dimensional dogma in favor of acknowledging alternatives for different business scenarios and information architectures. The examples are clear and concise, and Chris avoids going off into the weeds just to prove how brilliant he is. I wouldn't be surprised if this book became a standard at universities and among consulting organizations. I'll certainly be recommending it to our clients. --Doug Laney, VP Research, Gartner, @doug_laney
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