OLAP Solutions: Building Multidimensional Information Systems review:4 stars (Fundamental Olap principles) - I was impressed by the quality of this book; this is probably the most complete book on OLAP theory and is a fundamental reading for professionals involved in the design of olap systems. In most cases it gives all the details and information needed to master this technology. It also contains some practical examples that are very useful to see how the theory can be applied in the real world.I didn't read the first edition, but the second edition contains new sections and many updates, like a description of SQL-99 OLAP extensions. The author chose to be vendor-independent, so all practical examples are based on a multidimensional language that he created, called Located Contents (LC). However, when I read it I had already used a couple of OLAP tools (Microsoft Analysis Services and Microstrategy), and I think that this helped me understand many of the concepts contained in the book.4 stars (Good OLAP Methodology) - OLAP is a somewhat arcane corner of the IT universe and this book is a good guide to it for information and business professionals. It covers the basics well and provides decent exaples to get you going. Of course, the hardest part of OLAP is making the conceptual leap from relational databases and transactional processing to the world of analytical processing, but finance experts and accountants will appreciate OLAP and its ability to summarize data in a way that is hard to do in most ERP and legacy systems.5 stars (A must read for anybody involved in Olap design) - A book which gives you a comprehensive theoretical foundation together with useful, pratical techniques to design Olap solutions.In the first half of the book the author explains you all you need to think clearly in N dimensions, in the second half he guides you through the design of a rather complex application, stepping into the purchasing process, the material inventory analysis, sales & marketing, and activity-based management. He teaches you using maieutics, Socrates' way of teaching, via a dialogue between two designers. This way, a lot of questions that usually arise during real-life development are examined and solved.Whilst the examples in the first edition of this book were based on TM1, in this second edition they are written using a vendor-independent language, called LC (Located contents), which provides you with a solid, logically based foundation to multidimensional design.The vendor languages, like those used by Microsoft Analysis Services (MDX), Applix TM1, Oracle Express and Hyperion Essbase, are kind of Plato's shadows in the cavern of this ideal language (which is sort of a tautology for MS Plato...), so if you start thinking in LC, you'll be able to work with all of these products.Ideal complements to this book, if you use Microsoft Analysis Server, are "MDX Solutions" by George Spofford, and "Microsoft Olap Solutions", by Thomsen (again!), Spofford and Chase.
OLAP Solutions: Building Multidimensional Information Systems Features:
Author: Erik Thomsen
Business & Economics-Decision Making & Problem Solving
Business / Economics / Finance
Computer Bks - Data Base Management
Computers
Database Management - General
Decision Making & Problem Solving
Information Management
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