Description

Duration

2 Days

12 CPD hours

This course is intended for

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.

Overview

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 TODAX

CREATING OBJECTS WITHDAX

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 RELATEDTABLE

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 VISIBILITYOF YOUR MEASURES

USING WHAT-IF PARAMETERS

ADDING BANDING

USING DAX TO PROVIDE ROW-LEVEL SECURITY

Course Images

Introduction to DAX for Power BI

By Nexus Human

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