Book Image

SQL Server Analysis Services 2012 Cube Development Cookbook

Book Image

SQL Server Analysis Services 2012 Cube Development Cookbook

Overview of this book

Microsoft SQL Server is a relational database management system. As a database, it is a software product whose primary function is to store and retrieve data as requested by other software applications. SQL Server Analysis Services adds OLAP and data mining capabilities for SQL Server databases. OLAP (online analytical processing) is a technique for analyzing business data for effective business intelligence. This practical guide teaches you how to build business intelligence solutions using Microsoft’s core product – SQL Server Analysis Services. The book covers the traditional multi-dimensional model which has been around for over a decade as well as the tabular model introduced with SQL Server 2012. Starting with comparing MultiDimensional and tabular models – discussing the values and limitations of each, you will then cover the essential techniques for building dimensions and cubes. Following on from this, you will be introduced to more advanced topics, such as designing partitions and aggregations, implementing security, and synchronizing databases for solutions serving many users. The book also covers administrative material, such as database backups, server configuration options, and monitoring and tuning performance. We also provide a primer on MultiDimensional eXpressions (MDX) as well as Data Analysis expressions (DAX) languages. This book provides you with data cube development techniques, and also the ongoing monitoring and tuning for Analysis Services.
Table of Contents (19 chapters)
SQL Server Analysis Services 2012 Cube Development Cookbook
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Detaching and attaching databases


You are now familiar with backup and restore as well as synchronization methods for scaling out SSAS solutions. However, as you learned in the previous section, synchronization is single threaded and must transfer only one file at a time. Fortunately, you can use the Detach and Attach features along with the Robocopy command for copying files to ensure the faster delivery of files from the source to target instance.

When you detach a database, SSAS leaves the data folder in its current location and creates a detach logfile. You can copy the entire data folder to another host or another instance's data folder and reattach the database. Keep in mind, however, that unlike synchronization, the Detach and Attach methods do not copy the data for you; you must come up with your own routine (script) for copying data. Additionally, you can attach a previously detached database in the read/write mode to only one instance. For all other instances, you must attach the...