Microsoft Power BI Desktop: DAX Nâng Cao Cho Phân Tích Dữ Liệu

For users looking to take their Power BI skills to the next level, mastering Data Analysis Expressions (DAX) is a MUST. In this hands-on, project-based course, you'll put your DAX skills to the test and apply what you learn to some of the toughest real-world data analysis and business intelligence use cases.

You'll be playing the role of Business Intelligence Analyst for Maven Roasters, a small-batch coffee chain based in New York City. Your goal? Use Power BI and DAX to answer key questions and deliver data-driven insights for the business, by analyzing product inventory, repeat customers, store-level performance, and everything in between.

We'll start by quickly reviewing prerequisite topics (evaluation context, filter flow, basic measures, etc.), then dive behind the scenes to explore how the DAX formula and storage engines actually work, including query evaluation, columnar structures, and VertiPaq compression and encoding.

From there we'll cover helpful tips and analytics best practices for DAX power users, including variables, comments, query formatting and error handling, then dive deep into scalar functions, iterators, advanced time intelligence, calculated table joins, relationship functions, and much, much more. Last but not least, we'll share a sneak peek into performance tuning and DAX query optimization using DAX Studio and Power BI's Performance Analyzer tool.

If you're looking to build expert-level data analysis skills using DAX and Power BI, this is the course for you!

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FULL COURSE OUTLINE:

• Prerequisite Skills Review

  • Review the core DAX concepts you should already know, including evaluation context, filter flow, measures, etc.

    
    

• Course Project Intro

  • Introduce the Maven Roasters course project, and build the data model that we’ll analyze in Power BI Desktop

    
    

• The DAX Engines

  • Understand the DAX formula and storage engines, data types, VertiPaq encoding & compression methods, etc.

    
    

• DAX Tips & Best Practices

  • Review helpful tips for formatting DAX queries, adding comments, handling errors, and using DAX variables

    
    

• Scalar Functions

  • Explore common DAX scalar functions, including rounding, information, conversion, and logical functions

    
    

• Advanced CALCULATE

  • Review CALCULATE modifiers, context transition, interactions with tables, etc.

    
    

• Table & Filter Functions

  • Create calculated tables, review common DAX filter functions, generate new data, etc.

• Calculated Table Joins

  • Create calculated joins between physical and virtual tables in Power BI (UNION, EXCEPT, INTERSECT, etc.)

• Relationship Functions

  • Explore expanded tables, physical & virtual relationships, common relationship functions, etc.

• Iterator ("X") Functions

  • Explore iterator cardinality, nested iterators, context transition, RANKX, DAX calculation granularity, etc.

• Advanced Time Intelligence

  • Build date tables with DAX, compare custom time periods, manage fiscal calendars, etc.

    
    

• SNEAK PEEK: Performance Tuning

  • Introduce DAX Studio, the Power BI performance analyzer, and common DAX optimization techniques

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Join today and get immediate, lifetime access to the following:

• 150+ page Power BI & DAX ebook

• Downloadable datasets and Power BI project files

• Homework assignments & quizzes

• 1-on-1 expert support

• Course Q&A forum

• 30-day money-back guarantee

See you in there!

-Aaron (Power BI & DAX Instructor, Maven Analytics)

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Looking for our full course library? Search "Maven Analytics" to browse our full collection of Excel, Power BI, SQL, Tableau, Python, Alteryx & Machine Learning courses!

Hear why our Power BI courses are the TOP-RATED on Udemy:

"I totally loved this Power BI course! Everything was very easy to understand, but it moved at a fast enough pace that I never got bored. I learned SO much and had fun doing it. In fact, at the end of the day, I didn't want to stop learning -- I wanted to keep charging on to the next lesson!"

-Ann S.

"Amazing! 5+ stars if you ask me! Concise, superbly organized and prepared. I have learned a ton about Power BI and DAX and enjoyed the course from start to finish."

-Nikola H.

"Hands-down the best Power BI courses on Udemy. Courses are well prepared and very hands-on, and the instructor makes the whole experience easy and fun. I recommend it 100%!"

-Jorge M.

"Where can I leave a 6 star rating?"

-Carlos B.