Book Image

Hands-On SQL Server 2019 Analysis Services

By : Steve Hughes
Book Image

Hands-On SQL Server 2019 Analysis Services

By: Steve Hughes

Overview of this book

SQL Server Analysis Services (SSAS) continues to be a leading enterprise-scale toolset, enabling customers to deliver data and analytics across large datasets with great performance. This book will help you understand MS SQL Server 2019’s new features and improvements, especially when it comes to SSAS. First, you’ll cover a quick overview of SQL Server 2019, learn how to choose the right analytical model to use, and understand their key differences. You’ll then explore how to create a multi-dimensional model with SSAS and expand on that model with MDX. Next, you’ll create and deploy a tabular model using Microsoft Visual Studio and Management Studio. You'll learn when and how to use both tabular and multi-dimensional model types, how to deploy and configure your servers to support them, and design principles that are relevant to each model. The book comes packed with tips and tricks to build measures, optimize your design, and interact with models using Excel and Power BI. All this will help you visualize data to gain useful insights and make better decisions. Finally, you’ll discover practices and tools for securing and maintaining your models once they are deployed. By the end of this MS SQL Server book, you’ll be able to choose the right model and build and deploy it to support the analytical needs of your business.
Table of Contents (19 chapters)
1
Section 1: Choosing Your Model
4
Section 2: Building and Deploying a Multidimensional Model
8
Section 3: Building and Deploying Tabular Models
12
Section 4: Exposing Insights while Visualizing Data from Your Models
15
Section 5: Security, Administration, and Managing Your Models

Querying your model with SQL Server Management Studio and DAX

To wrap up the chapter, we are going to create a query in SSMS using DAX. First, DAX is not a query language, so the syntax is not as easy to understand at first for SQL users. The first difference is that you must start every query with EVALUATE. The EVALUATE function is used to analyze a table and return the values in the same way as a SELECT statement does with relational databases. To use EVALUATE, your outermost function must resolve to a table. Let's work through an example of this process:

  1. Open SQL Server Management Studio and connect to your tabular model instance. You should see your workspace database there.
  2. Right-click your workspace database and select New Query followed by DAX.
  3. Add the EVAULATE statement.
  4. In the first query, let's get the Item table using EVALUATE('Item'). Execute the query to return the contents of the Item table. You will notice that no measures are...