Multidimensional Databases and Data Warehousing - Jensen, Christian

. .

Résumé :
The present book's subject is multidimensional data models and data modeling concepts as they are applied in real data warehouses. The book aims to present the most important concepts within this subject in a precise and understandable manner. The book's coverage of fundamental concepts includes data cubes and their elements, such as dimensions, facts, and measures and their representation in a relational setting; it includes architecture-related concepts; and it includes the querying of multidimensional databases. The book also covers advanced multidimensional concepts that are considered to be particularly important. This coverage includes advanced dimension-related concepts such as slowly changing dimensions, degenerate and junk dimensions, outriggers, parent-child hierarchies, and unbalanced, non-covering, and non-strict hierarchies. The book offers a principled overview of key implementation techniques that are particularly important to multidimensional databases, including materialized views, bitmap indices, join indices, and star join processing. The book ends with a chapter that presents the literature on which the book is based and offers further readings for those readers who wish to engage in more in-depth study of specific aspects of the book's subject. Table of Contents: Introduction / Fundamental Concepts / Advanced Concepts / Implementation Issues / Further Readings

Biographie:
Christian S. Jensen, Ph.D., Dr.Techn., is a Professor of Computer Science at Aarhus University, Denmark, and a part-time Professor at Aalborg University, Denmark. Prior to joining Aarhus in 2010, he was employed full-time at Aalborg University. From September 2008 to August 2009, he was on sabbatical at Google Inc., Mountain View. He has previously been on several sabbaticals at University of Arizona. His research concerns data management and spans semantics, modeling, indexing, and query and update processing. During the past decade, his main focus has been on topics within spatio-temporal data management. He is an IEEE Fellow, a member of Royal Danish Academy of Sciences and Letters, the Danish Academy of Technical Sciences, and the EDBT Endowment...

Sommaire:
Introduction.- Fundamental Concepts.- Advanced Concepts.- Implementation Issues.- Further Readings.