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

Modifying model relationships


In this recipe, we will create the necessary relationships for the new tables. These relationships will be used in the model in order for the SSAS engine to perform correct calculations.

How to do it...

  1. Open your model in the Diagram view and you will see the four tables that you imported from the previous recipe.

  2. Select the CSRFCND field in the CSRFCND_T table and drag the CSRFCND table in the Crash_Data table.

  3. Select the LIGHT field in the LIGHT_T table and drag to the LIGHT table in the Crash_Data table.

  4. Select the MAJCSE field in the MAJCSE_T table and drag to the MAJCSE table in the Crash_Data table.

  5. Select the WEATHER field in the WEATHER_T table and drag to the WEATHER table in the Crash_Data table.

How it works...

Each table in this section has a relationship built between the code columns and the Crash_Data table corresponding columns. These relationships allow for DAX calculations to be applied across the data tables.