Power Bi Dax Essentials: Basic Dax Formulas And Functions

Get comfortable and confident in using DAX in Power BI

What you'll learn

Increase your confidence with Power BI by learning DAX

Master essential DAX functions

Learn how to avoid common DAX errors

Increase your Power BI efficiency

Requirements

A basic knowledge of Microsoft Power BI is assumed as well as Power BI Desktop (freely available)

Description

Power BI DAX Essentials is the first of three courses by G Com Solutions dedicated to the DAX language. And to go along with it, we have DAX intermediate and DAX Advanced.In this Power BI DAX Essentials course, we will focus on giving you a good grounding in the DAX language, and making sure that you are confident with all of the basics.We'll discuss the three objects which DAX is capable of creating: calculated columns, calculated tables, and calculated measures.You'll learn how to write your DAX in such a way that you are far less likely to make errors. You'll learn how to use the formula bar in the most effective manner, how to add comments to your DAX measures, how to use auto-complete effectively to minimize the errors that you make; and the course even contains a section dedicated to discussing the most common errors that people make and how you can avoid making them.This is very much a hands-on course, and you'll get plenty of real-world practice in writing DAX, and learning to structure your DAX in such a way that you start with basic measures, which then become the building blocks to your more advanced measures.You'll learn when to use DAX calculated columns in preference to Power Query computed columns, and also the circumstances when calculated columns should be used in preference to measures. But since measures are the most important DAX calculation, most of the course will be dedicated to discussing the creation of measures: some of the key functions that you'll need to use and the technique of nesting functions, whereby one function becomes the argument of another.You will master iterator functions, which enable you to aggregate a virtual column, saving you the overhead of having to physically add a column to the data model. And you'll also get a good handle on the calculate function, the most important function in the DAX language.By the end of the course, you'll feel confident and comfortable writing DAX formulas.

Overview

Section 1: Introduction

Lecture 1 0101-Welcome to the Course

Lecture 2 0102-Downloading the Course Files

Lecture 3 0103-DAX Overview

Lecture 4 0104-DAX Objects

Lecture 5 05-DAX Syntax and the Formula Bar

Lecture 6 0106-Calculated vs Computed Columns

Lecture 7 0107-Calculated Columns and Visuals

Section 2: 02-Calculated Columns

Lecture 8 0201-RELATED Function

Lecture 9 0202-RELATED VS LOOKUPVALUE

Lecture 10 0203-RELATEDTABLE Function

Section 3: 03-Conditional Statements

Lecture 11 0301-Nested IFs

Lecture 12 0302-AND Operator

Lecture 13 0303-Conditional Concatenation

Lecture 14 0304-OR Operator

Lecture 15 0305-IN Statement

Lecture 16 0306-SWITCH Function

Section 4: 04-Calculated Tables

Lecture 17 0401-Cloning a Table

Lecture 18 0402-ADDCOLUMNS

Lecture 19 0403-FILTER

Section 5: 05-Measures

Lecture 20 0501-Implicit Measures

Lecture 21 0502-Aggregating Columns

Lecture 22 0503-COUNT Function Variations

Section 6: 06-Iterator Functions

Lecture 23 0601-The SUMX Function

Lecture 24 0602-The AVERAGEX Function

Lecture 25 0603-The MAXX Function

Lecture 26 0604-The MINX Function

Section 7: 07-CALCULATE Function Basics

Lecture 27 0701-Basic Filter

Lecture 28 0702-ALL and REMOVEFILTERS

Lecture 29 0703-Percent of Total

Lecture 30 0704-Percent of Selected

Lecture 31 0705-Calculate Outcomes

Lecture 32 0706-CONTAINSSTRING

Section 8: 08-Common DAX Errors

Lecture 33 0801-Example 1

Lecture 34 0802-Example 2

Lecture 35 0803-Example 3

Lecture 36 0804-Example 4

Lecture 37 0805-Example 5

Power BI beginners who are struggling to master the DAX language