Book Image

Expert Cube Development with Microsoft SQL Server 2008 Analysis Services

Book Image

Expert Cube Development with Microsoft SQL Server 2008 Analysis Services

Overview of this book

Microsoft's SQL Server Analysis Services 2008 is an OLAP server that allows users to analyze business data quickly and easily. However, designing cubes in Analysis Services can be a complex task: it's all too easy to make mistakes early on in development that lead to serious problems when the cube is in production. Learning the best practices for cube design before you start your project will help you avoid these problems and ensure that your project is a success. This book offers practical advice on how to go about designing and building fast, scalable, and maintainable cubes that will meet your users' requirements and help make your Business Intelligence project a success. This book gives readers insight into the best practices for designing and building Microsoft Analysis Services 2008 cubes. It also provides details about server architecture, performance tuning, security, and administration of an Analysis Services solution. In this book, you will learn how to design and implement Analysis Services cubes. Starting from designing a data mart for Analysis Services, through the creation of dimensions and measure groups, to putting the cube into production, we'll explore the whole of the development lifecycle. This book is an invaluable guide for anyone who is planning to use Microsoft Analysis Services 2008 in a Business Intelligence project.
Table of Contents (17 chapters)
Expert Cube Development with Microsoft SQL Server 2008 Analysis Services
Credits
About the Authors
About the Reviewers
Preface
Index

Different kinds of calculated members


There are three kinds of calculated member:

  • Query-scoped calculated members are calculated members defined in the WITH clause of an MDX query. They are specific to the query and cannot be referenced outside it. They are very useful to developers for testing, debugging, and "ad hoc" reporting, but as defining a calculated member requires knowledge of MDX it is not something a normal end-user will be able to do.

  • Session-scoped calculated members are calculated members that exist in the context of the session that is created when a user connects to a cube. These calculated members are available for use in all queries executed in a particular session until either the session is closed or the calculated members are dropped. Session calculations are a convenient means for a client tool to simplify the queries it generates but, apart from that, they are rarely used. They are created by the client tool executing a CREATE MEMBER. statement.

  • Globally-scoped...