finelybook
The Definitive Guide to DAX: Business intelligence for Microsoft Power BI,SQL Server Analysis Services,and Excel (2nd Edition) (Business Skills)
Authors: Marco Russo - Alberto Ferrari
ISBN-10 书号: 1509306978
ISBN-13 书号: 9781509306978
Edition 版本: 2
Publisher Finelybook 出版日期: 2019-07-02
pages 页数: 768 pages
Book DescriptionNow expanded and updated with modern best practices,this is the most complete guide to Microsoft’s DAX language for business intelligence,data modeling,and analytics. Expert Microsoft BI consultants Marco Russo and Alberto Ferrari help you master everything from table functions through advanced code and model optimization. You’ll learn exactly what happens under the hood when you run a DAX expression,and use this knowledge to write fast,robust code. This edition focuses on examples you can build and run with the free Power BI Desktop,and helps you make the most of the powerful syntax of variables (VAR) in Power BI,Excel,or Analysis Services. Want to leverage all of DAX’s remarkable capabilities? This no-compromise “deep dive” is exactly what you need.
Perform powerful data analysis with DAX for Power BI,SQL Server,and Excel
Master core DAX concepts,including calculated columns,measures,and calculation groups
Work efficiently with basic and advanced table functions
Understand evaluation contexts and the CALCULATE and CALCULATETABLE functions
Perform timebased calculations
Use calculation groups and calculation items
Use syntax of variables (VAR) to write more readable,maintainable code
Express diverse and unusual relationships with DAX,including manytomany relationships and bidirectional filters
Master advanced optimization techniques,and improve performance in aggregations
Optimize data models to achieve better compression
Measure DAX query performance with DAX Studio and learn how to optimize your DAX
Contents
Foreword
Acknowledgments
Introduction to the second edition
Introduction to the first edition
Chapter 1.What is DAX?
Chapter 2.Introducing DAX
Chapter 3.Using basic table functions
Chapter 4.Understanding evaluation contexts
Chapter 5.Understanding CALCULATE and CALCULATETABLE
Chapter 6.Variables
Chapter 7.Working with iterators and with CALCULATE
Chapter 8.Time intelligence calculations
Chapter 9.Calculation groups
Chapter 10.Working with the flter context
Chapter 11.Handling hierarchies
Chapter 12.Working with tables
Chapter 13.Authoring queries
Chapter 14.Advanced DAX concepts
Chapter 15.Advanced relationships
Chapter 16.Advanced calculations in DAX
Chapter 17.The DAX engines
Chapter 18.Optimizing VertiPaq
Chapter 19.Analyzing DAX query plans
Chapter 20.Optimizing DAX
Index
Code Snippets
