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Home > Technical Courses > Power BI > Power BI Tools: DAX Introduction Course
Students will be introduced to using Data Analysis Expressions, the expression language that is used to create custom calculations in the Power BI Data model.
In this two-day course, students 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 DAX, but the emphasis is on using DAX to solve common business problems. Students will learn how to write their own calculated columns, measures, and tables, how to visualize the way Power BI computes DAX calculations, and how to troubleshoot custom code. This instructor-led course consists of a combination of lecture, demonstrations, and hands-on labs.
Category
ID
Duration
Level
Price
Power BI
13909
2 Day(s)
Foundation
$995.00
Objectives
In this course, you will learn to: • Perform basic calculations • Work with context in the data model • Perform more advanced calculations • Work with time • Enhance the user experience DAX functions that are covered in this class include: • Date and time functions: CALENDAR(), DATE(), DATEDIFF(), NOW(), WEEKDAY(), WEEKNUM(), YEAR(), MONTH(), DAY() • Filter functions: ALL(), ALLCROSSFILTERED(), ALLEXCEPT(), ALLSELECTED(), CALCULATE(), CALCULATETABLE(), FILTER(), KEEPFILTERS(), LOOKUPVALUE(), REMOVEFILTERS() • Information functions: CONTAINS(), HASONEFILTER(), HASONEVALUE(), ISBLANK(), ISEMPTY(), ISERROR(), USERNAME() • Logical functions: AND(), COALESCE(), IF(), IF.EAGER(), IFERROR(), NOT(), OR(), SWITCH(), TRUE(), FALSE() • Math and Statistical Functions: DIVIDE(), SUM(), SUMX(), AVERAGE(), AVERAGEX(), COUNT(), COUNTBLANK(), COUNTROWS(), COUNTX(), DISTINCTCOUNT(), MAX(), MAXX(), MEDIAN(), MEDIANX(), MIN(), MINX(), RANKX() • Table manipulation functions: CROSSJOIN(), DATATABLE(), NATURALINNERJOIN(), VALUES() • Text functions: CONCATENATEX(), FIND(), LEFT(), LEN(), MID(), REPLACE(), SEARCH(), TRIM(), VALUE() • Time intelligence functions: DATEADD(), DATESBETWEEN(), DATESMTD(), DATESQTD(), DATESYTD(), PARALLELPERIOD(), SAMEPERIODLASTYEAR(), TOTALMTD(), TOTALQTD(), TOTALYTD
Getting started with DAX • What is DAX? • Basics of DAX syntax • Creating a calculated column • Creating a calculated measure • Creating a calculated table • Differences in evaluation context • Rules of evaluation • Working with variables • Commenting your code • Testing your code Performing basic calculations • Implicit measures • Adding quick measures • Doing basic math • Using logic in your calculations • Aggregating and summarizing data • Working with DAX data types 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 • Modifying the context using CALCULATE • Looking up data without using relationships Performing more advanced calculations • Handling errors gracefully • Using DAX iterator functions • Using table manipulation functions • Troubleshooting your calculations using the • Performance Analyzer and DAX Studio 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 Enhancing the user experience • Controlling visibility of your measures • Using What-if parameters • Adding banding • Using DAX to provide row-level security
Questions?
Although experience with Power BI Desktop is not strictly required for this class, students with at least some familiarity will be better equipped to get the most out of the lab work.
Power BI Tools: DAX Introduction Course
Class Schedule
Live Online
Classroom Virtual
Course Overview
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