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

Using the AND function


The AND function is similar to the IF function. When you use this function, it is checking two arguments at the same time to determine if the condition is true or false. When both arguments are true, then the function returns true. In this recipe, you will add a function on a new column to determine if the record is a single or multiple vehicle fatality. The AND function has a required syntax of AND(<logical1>, <logical2>).

How to do it...

  1. Open the Chapter_9_DAX solution, select the CRASH_DATA_T table, and make sure you are in the data Grid view.

  2. Scroll to the right until you find the Add Column. Then in the expression box, add the formula to determine the number of vehicles and number of fatalities involved and press Enter to create the calculation. You will then see a label added to each row:

            =IF( And ( [FATALITIES]>=1, [VEHICLES]=1), "Single Vehicle 
            Fatality", "Multiple Vehicle Fatality" ) 
    
  3. On the Properties window, change the...