Book Image

Tabular Modeling with SQL Server 2016 Analysis Services Cookbook

By : Derek Wilson
Book Image

Tabular Modeling with SQL Server 2016 Analysis Services Cookbook

By: Derek Wilson

Overview of this book

SQL Server Analysis Service (SSAS) has been widely used across multiple businesses to build smart online analytical reporting solutions. It includes two different types of modeling for analysis services: Tabular and Multi Dimensional. This book covers Tabular modeling, which uses tables and relationships with a fast in-memory engine to provide state of the art compression algorithms and query performance. The book begins by quickly taking you through the concepts required to model tabular data and set up the necessary tools and services. As you learn to create tabular models using tools such as Excel and Power View, you’ll be shown various strategies to deploy your model on the server and choose a query mode (In-memory or DirectQuery) that best suits your reporting needs. You’ll also learn how to implement key and newly introduced DAX functions to create calculated columns and measures for your model data. Last but not least, you’ll be shown techniques that will help you administer and secure your BI implementation along with some widely used tips and tricks to optimize your reporting solution. By the end of this book, you’ll have gained hands-on experience with the powerful new features that have been added to Tabular models in SSAS 2016 and you’ll be able to improve user satisfaction with faster reports and analytical queries.
Table of Contents (18 chapters)
Tabular Modeling with SQL Server 2016 Analysis Services Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Understanding and building relationships


As you add tables to your model, you will need to build the relationships that tell the tabular model which tables and fields are related to each other. These relationships enable the calculations that you create to perform correctly. In this recipe, you will create a relationship between the MasterCalendar_T table and the Crash_Data table.

Getting ready

Before starting this recipe make sure you have loaded the Iowa crash data and the MasterCalendar_T table into you model. This recipe shows you how to create a relationship between the two tables.

How to do it...

  1. Left-click the Crash_Date_fx column from the CRASH_DATE table and then drag it to the Date column in the MasterCalendar_T table.

  2. Since MasterCalendar_T is designated as a Date table, the model made the relationship be one-to-many from the MasterCalendar_T to the Crash_Data table.

  3. Double-click on the relationship arrow that was added to bring up the Edit Relationship window. This window allows...