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Introduction to DAX for Power BI

4.6 out of 5 rating

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2 Days

12 CPD hours

About this course

This course is intended for business users who have been using Power BI to build analytic solutions and are ready to take advantage of the power and flexibility that DAX provides. Learning DAX is a very common “next step” for experienced Power BI users.


At course completion, you should be able to

  • Describe DAX syntax, data types, and errors
  • Use DAX to create calculated columns, measures, and tables
  • Explain how DAX calculations are evaluated, along with the differences between row context and filter context
  • Configure and use Time Intelligence to perform common time-based calculations, for example to-date calculations, year-over-year analysis, moving averages, etc.
  • Create calculated columns and measures that use data from multiple tables in the data model
  • Write measures that handle error conditions gracefully
  • Use DAX to enhance the Power BI user experience
  • Use DAX Studio to connect to a Power BI data model and execute simple queries


Welcome to Introduction to DAX for Power BI. This two-day instructor-led course is intended for business users who have been using Power BI and want to use DAX to create custom calculations in their data models. In this class, you will be introduced to using Data Analysis Expressions (DAX), which is the expression language that is used to create custom calculations in the Power BI Data model. The course covers some of the theoretical underpinnings of the data model and the DAX language, but the emphasis is on using DAX to solve common business problems. You will learn how to write your own calculated columns, measures, and tables, how to visualize the way Power BI computes DAX calculations, and how to troubleshoot custom code.

Module 1: Getting started with DAX
  • Introduction to DAX
  • Creating objects with DAX
  • Context and rules of evaluation
  • Variables, comments, and testing
Module 2: Performing basic calculations
  • Getting started
  • Implicit measures
  • Adding quick measures
  • Working with DAX data types .
  • Doing basic math
  • Using logic in your calculations
  • Using the if() function
  • Nested if()
  • Using the switch() function
  • Advanced switch()
  • Logical operators & functions: ||, OR(), &&, AND(), NOT()
  • Aggregating and summarizing data
  • The sum() function
Module 3: Working with context in the data model
  • Context defined
  • Data modeling basics
  • Introduction to dimensional modeling
  • Relationships and their effect on the evaluation context
  • Getting data from other tables using related() and related table
  • Looking up data without using relationships
  • Modifying the context using calculate()
Module 4: Performing more advanced calculations
  • The DAX iterator functions
  • Using table manipulation functions
Module 5: Working with time
  • Performing date calculations
  • Working with date tables
  • Generating a date table with the calendar() function
  • Defining custom operating periods
  • YTD, QTD, and MTD calculations
  • Custom to-date calculations
  • Finding year-over-year change
  • Finding moving averages
Module 6: Enhancing the user experience
  • Controlling visibility of your measures
  • Using what-if parameters
  • Adding banding
  • Using DAX to provide row-level security
Additional course details:

Nexus Humans Introduction to DAX for Power BI training program is a workshop that presents an invigorating mix of sessions, lessons, and masterclasses meticulously crafted to propel your learning expedition forward.

This immersive bootcamp-style experience boasts interactive lectures, hands-on labs, and collaborative hackathons, all strategically designed to fortify fundamental concepts.

Guided by seasoned coaches, each session offers priceless insights and practical skills crucial for honing your expertise. Whether you're stepping into the realm of professional skills or a seasoned professional, this comprehensive course ensures you're equipped with the knowledge and prowess necessary for success.

While we feel this is the best course for the Introduction to DAX for Power BI course and one of our Top 10 we encourage you to read the course outline to make sure it is the right content for you.

Additionally, private sessions, closed classes or dedicated events are available both live online and at our training centres in Dublin and London, as well as at your offices anywhere in the UK, Ireland or across EMEA.

Training Insurance Included!

When you organise training, we understand that there is a risk that some people may fall ill, become unavailable. To mitigate the risk we include training insurance for each delegate enrolled on our public schedule, they are welcome to sit on the same Public class within 6 months at no charge, if the case arises.

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23 Jul 24 Enquire Book
09:30 - 17:00 Live Online 990
23 Oct 24 Enquire Book
09:30 - 17:00 Live Online 990

Global Schedule

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26 Aug 24 Enquire Book
14:00 - 22:00Live Online GTR1,295
25 Nov 24 Enquire Book
14:00 - 22:00Live Online GTR1,295

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