Power BI DAX Introduction

Description

In this one-day tutor-led online Introduction to Power BI Data Analysis Expressions (DAX), delegates will learn the fundamentals of the DAX language. By the end of the course, delegates will be confident in creating basic calculated columns, calculated tables and calculated measures.
The main topics covered are Calculated Columns; DAX Syntax; Calculated Tables; Measures; Iterator Functions; Understanding Calculation Contexts; and CALCULATE Function Basics.

Course Outline

Getting Started

Welcome to the Course
Downloading the Course Files
DAX Overview
DAX Objects

Calculated Columns

Calculated Columns versus M Computed Columns
Creating Calculated Columns
Calculated Columns versus Measures
Calculated Columns, Measures and Visuals

DAX Syntax

Referring to Objects
DAX Operators
Using Variables

Calculated Tables

Creating Calculated Tables
Creating a Date Table
Cloning a Table
Using the DISTINCT Function
Using the FILTER Function

Measures

Creating a Measures Table
Implicit Measures
Measures and the Filter Context
Basic Aggregation Functions
Logical Functions

Iterator Functions

Implicit and Explicit Iteration
The SUMX Function
The AVERAGEX Function
The COUNTX Function
Calculation Contexts

Understanding Calculation Contexts

The Row Context
The Filter Context
Context Transition

CALCULATE Function Basics

CALCULATE Overview
Using CALCULATE with Booleans
Using CALCULATE with FILTER
Using CALCULATE with ALL