Definitive Guide to DAX, The (häftad)
Fler böcker inom
Format
Häftad (Paperback)
Språk
Engelska
Antal sidor
768
Utgivningsdatum
2019-07-20
Upplaga
2
Förlag
Microsoft Press
Medarbetare
Ferrari, Alberto
Dimensioner
231 x 185 x 33 mm
Vikt
1248 g
Antal komponenter
1
ISBN
9781509306978
Definitive Guide to DAX, The (häftad)

Definitive Guide to DAX, The

Business intelligence for Microsoft Power BI, SQL Server Analysis Services, and Excel

Häftad Engelska, 2019-07-20
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Now expanded and updated with modern best practices, this is the most complete guide to Microsofts 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. Youll 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 DAXs 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 time-based 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 many-to-many 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 
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Övrig information

Marco Russo and Alberto Ferrari are the founders of sqlbi.com, where they regularly publish articles about Microsoft Power BI, Power Pivot, DAX, and SQL Server Analysis Services. They have worked with DAX since the fi rst beta version of Power Pivot in 2009 and, during these years, sqlbi.com became one of the major sources for DAX articles and tutorials. Their courses, both in-person and online, are the major source of learning for many DAX enthusiasts. They both provide consultancy and mentoring on business intelligence (BI) using Microsoft technologies. They have written several books and papers about Power BI, DAX, and Analysis Services. They constantly help the community of DAX users providing content for the websites daxpatterns.com, daxformatter.com, and dax.guide. Marco and Alberto are also regular speakers at major international conferences, including Microsoft Ignite, PASS Summit, and SQLBits. Contact Marco at marco.russo@sqlbi.com, and contact Alberto at alberto.ferrari@sqlbi.com

Innehållsförteckning

Introduction 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: DAX examples Chapter 7: Time intelligence calculations Chapter 8: Statistical functions Chapter 9: Advanced table functions Chapter 10: Advanced evaluation context Chapter 11: Handling hierarchies Chapter 12: Advanced relationships Chapter 13: The VertiPaq engine Chapter 14: Optimizing data models Chapter 15: Analyzing DAX query plans Chapter 16: Optimizing DAX Index