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DAX Functions in Power BI

GrundläggandeKunskapsnivå

Uppdaterad 2025-12

Data Analysis Expressions (DAX) allow you to take your Power BI skills to the next level by writing custom functions.

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Power BIData Manipulation

3 tim

9 videor

25 Övningar

2,050 XP

62,856

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Kursbeskrivning

Master DAX

DAX, or Data Analysis eXpressions, is a formula language used in Microsoft Power BI to create calculated columns, measures, and custom tables. Once mastered, DAX gives you powerful control over visuals and reports, allowing for better performance and more flexibility.

Apply Context

This course covers the core concepts such as row query and filter context, with exercises focusing on filtering, counting, ranking, and iterating functions.

Förkunskapskrav

Introduction to DAX in Power BI Data Modeling in Power BI

1

Setting up Data Models with DAX

In this chapter, you'll write custom functions to create new tables and calculated columns.

DAX for creating tables and columns

Row vs. query vs. filter context

DAX for calculated tables and columns

Creating a date table

Calculated column for costs

Data cleaning with DAX

Connecting data from different tables

2

DAX and Measures

In this chapter, you'll write custom functions to create calculated measures. You'll also get introduced to variables to make writing DAX functions more efficient.

Methods to create DAX measures

Advantages of explicit measures

DAX and Measures

Using variables

Basic statistical measures

Quick measures

3

Filtering and Counting with DAX

Expand your DAX power with some commonly used DAX measures. This chapter focuses on filtering and counting functions.

Filtering and counting with DAX

Understanding different filter functions

Using different filters with DAX

Filter ALL the data

Calculating with a filter

4

Iterating Functions

This chapter covers the core concept of another powerful set of DAX functions, the so called iterating functions. You will explore iterations with exercises focusing on ranking and iterating your data.

Iterating functions

DIY iterating functions

Iterating functions in Power BI

Practice with iterating functions

More iterating functions

Use of RANKX()

Congratulations!

DAX Functions in Power BI

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