📊 How to use Power BI DAX - Tutorial
ฝัง
- เผยแพร่เมื่อ 27 มิ.ย. 2024
- In this step-by-step tutorial for beginners, learn how to use DAX (Data Analysis Expressions) in Microsoft Power BI. DAX is a formula language with functions. If you've ever written formulas in Excel, you'll find that DAX is very familiar.
We'll start by loading the sample data into a data model. Next, we establish relationships between the various tables.
Once the setup is complete, we'll write our first measure. A measure is a calculation that runs across our data model. You'll learn about a few different functions, including sum and count. You'll also learn how to comment your expressions.
Next, we create a measure using operators, like addition, subtraction, division, and multiplication. We then dive into how you can create measures using a graphical user interface called Quick Measures.
We then move onto creating a calculated column and talk about the advantages and disadvantages of columns vs. measures.
We then dig into iterator functions and when you would use them compared to an aggregator function. Iterator functions include sumx, countx, averagex, maxx, minx, and rankx.
Next, we look at the date functions that are available and we use the one called weekday.
We wrap up by looking at some logical functions, including find, if, and calculate.
👋 Additional resources
- Introduction to Power BI (Start here if you're new to Power BI) - • How to use Microsoft P...
- Sample files (use these to follow along) - 1drv.ms/u/s!AmxrofZZlZ-whMIgS...
⌚ Timestamps
0:00 Introduction
0:49 Import data & create data model
3:25 Define relationships
5:14 Create new measure using sum function
10:22 Format measures
11:44 Edit & delete measures
12:33 Create new measure using count function
14:30 Create new measure using distinct function
16:02 Add comments to measures
16:56 Create new measure with operators
19:08 Quick Measure tool
20:36 Create calculated column
21:38 Measure vs. calculated column
22:07 Measure that references another measure
24:19 Iterator functions
27:32 Time & date functions
30:12 Find function
32:38 If function
33:54 Calculate function
36:39 Wrap up
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🙋🏻♂️ New to Microsoft Power BI? Get started with this introductory video: th-cam.com/video/TmhQCQr_DCA/w-d-xo.html
Please teach about data flow and M language . Thank you kevin
Great 👍😊🙏💕
Kevin, would really appreciate if you could guide me on ho wI can use PowerBI, SQL and Toolpak on Macbook
can you please add xls link of all 3 exercise file ?
I’ve watched several tutorials on Dax but yours stands out more and straight to the point. Thanks Kelvin
Today I went to a work interview (Thursday). They asked me if I was good on Power BI, and I never heard about it before. They said they could get around it, but I said I would be able to master it by Monday. Your videos popped up on my search and as I followed them, I feel like I'm ready in just one day. Really nice, powerful and simple at the same time program. Thanks to your tutorials, the introduction to this program was easy for me. Keep up with these videos. You will be the first search going on from here for software tutorials for me.
Kevin, you are such a great teacher. 🤩Thank you for keeping it very simple and clear. I love the way you explain everything and I am excited to watch more of your training videos for DAX. I have found Dax hard to learn but you make it fun and exciting. 😀
Do you know the different between power BI vs. Power Query?
It's Amazingggggggggg! The way you've explained just makes me wanna learn more. We need more videos on DAX please!
Hey,
I'm EC engineer... Can I learn Power BI? Which language or software I should learn alongside power BI?
what is job opportunity for freshers in india?
Please guide.... 🙏🏻
@@dexxxxxxxx Hey sure. You can learn power BI. You don't need to learn any additional software, however it's recommended to learn Excel (if not learnt). You'll be good to go.
@@BlushStix thank you ma'am...
How much salary fresher can earn with power BI?
@@dexxxxxxxx A power BI developer can earn anything between 3.5lac to 10lac in India. You need to have knowledge about Fax when you'll learn power BI, make sure DAX is included in it.
@@BlushStix that's appealing salary... 🤯
Thank you very much for information 🙏🏻
What a great teacher. You just made DAX look less of a mystery to me. never thought I will take on DAX and be this happy. Thank you Kevin. God bless you Sir
I am absolute beginner in Power BI Dax formulas. But now by watching this video I understood how to use them and about their core functionalities. Thanks Kevin great effort.
Glad it was helpful!
It is usually tough to start gradually you will get a hand of it. Think about it, as if you are in excel. I tried to make a video on DAX for beginners.. kindly check it out...
Thank you very much, Kevin! I've just watched a few DAX intro videos from 5 different instructors, and your explanation is by far the best!
Thanks very much for this! It's been a while since I last used Power BI DAX functions and needed a refresher. Your video turned out to be so much better than what I had initially expected! I hope you can do more tutorials on complicated DAX, they used to give me so much headaches!
Kevin, I just started a job at an accounting firm and we use Power BI as a tool during audits. This is amazing really. Great work explaining every step, it's extremely helpful!
Hi Carel! Please what are some of the use Cases in using Power BI for Audit....? Thanks ...
How do you use power bi for audits? I’m curious because I was actually wondering if there was applications for using power BI in the finance industry.
Kevin, you are such a great teacher!
I've spent 3 months learning from some other guys on TH-cam and doesn't understand anything. But your 37-min video just changed anything, I could understand a bit more on how star scheme, DAX, new colume, measure,... works. That's just great!
Omg, you are the BEST teacher I have ever encountered. I don't think I ever thought I could be so grateful to someone I've never even personally met, thank you!
Kevin, this instruction is awesome. I'm pretty new to Power Bi but I've been performing data analysis for a long time. Your instruction touched on many topics that quickly made sense to me (leveraging my previous experience with Excel) and the examples (following along with your example files) cleared up any questions I had. I only wish I had Power Bi 30 years ago (yes, I'm old). Thank you.
That means I must be old too. Perhaps better to say that you are experienced (or even highly experienced)! Cheers - Dave
Kevin, you are a great teacher. You explain very details and clear.
Thank you for sharing your knowledge.
This is fantastic, I had basic idea about power BI and DAX... but this video helped me to get into detail on calculation part... It was easy to understand and learn. Thanks a lot 🙂
Hey Kevin! Now I finally understand the difference between aggregate functions and iterate functions. Two thumbs up to you.
Thanks a lot Kevin! I keep coming back here for the DAX measures using your cookie examples. Makes it so easy to understand. Power to you!
This was awesome!! We need more advanced Power BI videos.
Nice video. Very descriptive with good examples. I would have loved it if, when you were doing % and margins, you showed how big a % of total profits each customer was. So the customer profit % of total profit, and in the same table. That would have been a great real world addition 😊
This video summarizes what took me 1 month to learn from DAX pdf book. Great work Kevin! Thanks for this!
Each time I saw your tutorials...I end up watching your video by saying you a big thank you from the bottom of my heart...it is really helpful Kevin...you are truly great teacher...thanks once again.
Thank you so much Kevin! I have been struggling a bit with some of these concepts in DAX and this has made everything so much clearer for me. I can't wait to go back and rewrite some of my old measures and create new more powerful ones, especially with the Calculate Function.
Kevin, I hope that your Cookie Co.comes true, but please don't abandon us. Your videos are always: explicate and easy to understand. Thank you!
Yes Jorge, his videos has also helped me .. so i tried to make videos what i have learnt...like DAX for beginners.. kindly check it out...
Kevin you are just amazing ! Thank you so much for profound and comprehensive tutorial. I'm grateful
Thank you Kevin 👍🏻
I’m a final year student student studding Business IT. Data analyst and science are my career path I’m considering cause I’m efficient in excel, sql and a beginner in python language. Your power BI tutorial is a top notched for me. I got a job interview recently for a data analyst role. After having gone through your tutorials over the past few months, I stood out during the interview and the panelists were impressed. The only challenge I had was that I’m yet to complete my course but I believe after I’m done I will get one in that area.
👍🏻👍🏻👍🏻
Really useful, thank you!! I like that I can follow along with the sample files real time. Love the format!
Thank you Kevin!! You are a great teacher! I am new to Power BI. You have a very clear explanation and it's easy to follow. I hope to continue see your videos and learn from you. Thank you for sharing your knowledge!!
Mr. Kevin you are the King !!!! Thanks for all your guidance SIR !!!
I am a non-background computer knowledgeable person. But this is an Awesome practical explanation with a live show. I love practical knowledge in a simple way first. I just love it. FINALLY, I FOUND THE BEST ONE FOR ME. DO MORE VIDEOS ON DAX FUNCTIONS FROM EASY TO ... .. DEPTH(MAINLY ON-TIME INTELLIGENCE )
More to come Venkatareddy!
Hi venkatreddy ! I tried to make a video on DAX for calendar table for beginner which will help in time intelligence.. kindly check it out...
Very straightforward and helpful!
Hey Kevin, great stuff! You have made it really easy to understand Power BI. I would love to see more videos on Power BI which cater to the advanced crowd.
Kevin, you really mastered every product of Microsoft...very nice session. Thanks
Hey,
I'm EC engineer... Can I learn Power BI? Which language or software I should learn alongside power BI?
what is job opportunity for freshers in india?
Please guide.... 🙏🏻
Thank you Kevin, you are amazing. No confusion at all
Kevin. You're a legend! Thank you for this. Hands down best DAX tutorial. Going to watch again and follow through with the files you provided.
Thanks for the note BrotherCole 94! Much appreciated 👍
Boy, did Microsoft loose a great employee when you left the company.....
You are the best teacher - no doubt about that.
Thank you for your great vids !!!
I'm learning a lot with these videos!!!
Excellent teaching, you make everything look super easy and I'm glad I found your contents on here, keep up the great work.
Keep these Power BI vids coming, they are killer!!!!!
Brilliant !
i just finished the whole power BI playlist.
i hope to add more advanced videos.
Hi Kevin, another great video as usual;) - however, like someone already pointed out on the comments below (Jonathan Porter), there's a mistake on the bar chart - Orders should add up to 700 but they are not. This is because the Values field should be summarised by Count. Cheers
Thank you so much! The video is very structured and easily understandable. I’ve enjoyed learning Power BI with you. Please upload more video on it :)
One of the best videos on DAX. Thanks Kevin
Dear Kevin, your lessons are easy to follow and undestand. Keep up good work.
Kevin, I was not knowing what Power BI is, but due to you I now understand how powerful the Power BI is. Really, Great Thanks to you and your work :-) 👍👍
Glad to help!
Another great tutorial from Kevin Stratvert! Thanks Kevin
Your videos are the cleanest, neatest and smoothest videos anyone can ever come across. Hats off to your hard work!
You are a true teacher Kevin, Thanks for clear explanations
the expression formula is rather complex but the whole presentation was really insightful/articulated and easy to follow! Well done
Great video, I really enjoyed watching it. I'm on day 2 of my new Manager of People Analytics position, and this came in super handy. Thank you, Kevin.
Thanks for the walk through and taking some of the guess work out of getting started with PBI…you explain all the little details very well and make it easy to understand! 🙏
Thank you, this was very informative and quick. Please add more advanced measures.
you are a special teacher/tutor. easy and simple to understand. Thanks man for your valuable contribution
Awesome video. This is just what I needed to understand DAX. No nonsense, straight to the points. :)
very good video for beginner to understand DAX. Clear and simple teaching.
“I think that was a data entry mistake. I want to just hide the decimal places altogether so it doesn’t invite any questions.” Yes, let’s just sweep that one under the rug. 🤣😆😂
🤣
No this is a data entry problem, if you try to look at the orders table you'll see that some rows has decimal units sold.
He is trying to teach you buddy 😊
It's for learning purposes I believe.
@@frsvegetaop2483maybe half a box is sold lol
Thanks Kevin. Really appreciate the effort you put in to make this video.
Fantastic job. You are a natural teacher, thank you.
Thank you so much for the tutorial! It literally taught me a lot!
Thank you Kevin! I hope more Power BI videos are in the pipeline!
Great video. The pace was perfect with minimal dialogue that didn't add to the video
Great tutorial and easy to understand very quickly. Thanks for sharing !!
Your explanation is simple & easy to grab! Thanks for your initiative!
Kevin, you are simply Amazing man!
The simple practical way you explain all the steps makes it really easy 5o follow and understand.
Thanks for sharing your knowledge....l hope to continue learning new things on Power BI and DAX from you...and other topics.
Thank you again Kevin!
I'm reall fast, i just came here when you uploaded the video and went 15 Seconds
Excellent content Kevin. 👌 FYi I listen to you at 1.25 playback speed. 😊
Thanks a lot Kevin! Love from Singapore 🇸🇬
Thank you Kevin, we really need more videos on DAX
One of the best DAX intro tutorial, Thanks a lot!
I watched many videos in power bi but found it hard to follow, as the mouse moved very quickly from point to point. Your format was very easy to follow and you explained everything clearly.... Thank you, I am looking forward to advanced level videos.
I have learned lots of things from this channel. Thank you Kevin!!
Emil Egiazarian It was very professional and main thinks you was acting like a good teacher, i am college professor my self and like to learn Power bi i will follow all your lessons. Thank You so Much
Absolutely amazing video. Very explicit. You make it so easy to follow and understand. Thanks for sharing
Thank You Kevin, awesome teacher. Please making more videos. I appreciate all you do.
Amazing! We need more DAX videos, please.
You should consider doing a more advanced series of these DAX vids. Very good job.
More to come!
Thank you, Kevin. You explained DAX in a lucid way.
Very, very well done! I make "how to" instructional videos for the large school system I serve and I know from experience how challenges these can be to make look so smooth. I learned a lot, want to put what I learned into practice and learn even more!
So very clear and helpful. Thanks!
I have prepared the dashboard along with you. Thank you!
the way you explain is so clear and great , your channel is the best on youtube I have ever seen
Power tool you give us more power at work , thanks for your power class.
This was very helpful. Thank you, Kevin. Have a great day.
Excellent video Kevin! Gives a high level overview and introduces many of the major concepts, without getting too bogged into any one concept.
Hey,
I'm EC engineer... Can I learn Power BI? Which language or software I should learn alongside power BI?
what is job opportunity for freshers in india?
Please guide.... 🙏🏻
@@dexxxxxxxx Hi and thanks for your question. Power BI is a small part of a massive and very lucrative field, which is Data Warehousing and Business Intelligence. With the rise of big data, BI has become a high-demand career.
So, yes - there are lots of jobs available. You can choose to focus just on Power BI or focus on BI in general, Data Warehousing or Dimensional Modelling.
Just to add my thanks to this. Great video. Thanks for posting this for us.
Great videos prepared by Kevin.. Within a day ror two we can get thorough knowledge on PBI watching his videos
For the bar chart of the weekdays at around 29:55, the values add up to over 700 (greater than the number of rows in the data). To correct this issue, in my version of Power BI, for the bar chart, I had to select "Count of Day of Week" in "Values" and then place "Day of Week" in "Axis". Thanks so much for your work Kevin! I appreciate your clear overview.
I spotted the same and left another comment;)
Day of week vs Count of Day of Week? That still wont mean anything. It should have been Day of Week vs Units Sold.
I think it should be count of order id
A powerful dose of knowledge with so ease. Thank you Kevin
Nicely done, Kevin! On your Day of the Week part of the video, you are adding them (instead of adding Orders) and slicing by Days of the Week as well in that visual.
Wonderfully taught and very easy to follow! 😀
Kevin !! You are awesome. It was superb explanation and the pace is just nice for us to digest. Good work !!
*Thank you so much, Kevin. I have a Power BI exam next week. I really need to pass.*
This is mind-blowing and explicit. Thank you
One of the Best DAX class in TH-cam. ! Very helpful .. Keep teaching !!
Hey,
I'm EC engineer... Can I learn Power BI? Which language or software I should learn alongside power BI?
what is job opportunity for freshers in india?
Please guide.... 🙏🏻
Thanks for teaching me DAX. be blessed
Good one. You were clear in explaining the DAX functions. Thank you
Very well explained. Good tutorial for a beginner.
Thank you so much for my first time learning. You saved my life. And today I have a practice exam and really easy... ❤
Great video. I really enjoy your style of explanation. I also greatly appreciate the sample files so I can follow along.
Excellent tutorials -- thanks Kevin! Wish you could do some more!
Excellent so much knowledge in such a short time and wonderfully explained, thank you very much.
Thanks man, really helpful in opening up the basics of DAX