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Tabular Modeling with SQL Server 2016 Analysis Services Cookbook

You're reading from  Tabular Modeling with SQL Server 2016 Analysis Services Cookbook

Product type Book
Published in Jan 2017
Publisher Packt
ISBN-13 9781786468611
Pages 372 pages
Edition 1st Edition
Languages
Author (1):
Derek Wilson Derek Wilson
Profile icon Derek Wilson
Toc

Table of Contents (18) Chapters close

Tabular Modeling with SQL Server 2016 Analysis Services Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Introduction to Microsoft Analysis Services Tabular Mode 2. Setting up a Tabular Mode Environment 3. Tabular Model Building 4. Working in Tabular Models 5. Administration of Tabular Models 6. In-Memory Versus DirectQuery Mode 7. Securing Tabular Models 8. Combining Tabular Models with Excel 9. DAX Syntax and Calculations 10. Working with Dates and Time Intelligence 11. Using Power BI for Analysis

Testing DirectQuery mode


By running an SQL Server profiler trace, you can see exactly what is happening when a DirectQuery mode query is executed. In this recipe, you will use SQL Server Management Studio to execute a query and trace the results:

  1. Connect to your model using SQL Server Management Studio.

  2. Drag SURFACE_CONDITION, MAJOR_CAUSE, and Count_of_Crashes to the query window:

How it works...

Since the QueryMode property is set to DirectQuery, the tabular engine is accessing the data from the SQL Server Engine tables. The actual query can be seen when you use SQL Server Profiler to trace the query on the SQL Server Database. In this instance, the query results are sent back to SSAS tabular mode and then presented to the end user tool:

As you can see, the tables being queried are the base tables, and they are being accessed using T-SQL syntax not DAX or MDX.

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