DAX by examples

[@UlyssesHaq]

Ive been studying and applying DAX for almost 2yrs, and this introduction is STiLL so inspirational. The learning continues, and its a joy. Thank you.

[@lorin-gabriellauran2559]

@SQLBI this needs to become a series, this is so helpful to see DAX in action!

[@M_Dolega]

It's one thing to know Dax, the other to be able to explain it so your grandmother can understand it This guy is no doubt a GREAT TEACHER!

[@zhengxijiang4087]

20:00 FILTER( table, filter expression). Filter() creat a row context, we need to use nevigation function related() 22:30 filter context, measure caculation is always under a filter context. 24:50 CACULATE() works with filter context, not row context, it does not need RELATED() kind of nevigation funcions.

[@Mrglasshalfempty]

This is a masterful video. I can't imagine how much work, time, and intentionality went into getting this exact scenario to showcase all the ins-and-outs of the solution. Absolutely excellent in every way, and I cannot thank you enough!

[@New2you09]

I find the format of this video to be incredibly useful: working through a scenario exploring different methods. Pls do more like this.

[@bedadhalathirumaleswarared8134]

Same feeling. I hope Sqlbi team will do these kind of series of videos.

[@caterinagentili1034]

Love how Alberto teaches: Example > Problem > Theory explaining the problem > Solution > Theory explaining the solution. This way you'll remember why you are doing what you are doing and HOW to solve issues.

[@Jayatu_Sanatan]

Yes

[@joaorataoo]

I've watched Mastering DAX twice and I've always learned something new. I still have many doubts about DAX and I still struggling to learn it, but when someone comes to me and ask me for some advice how to learn DAX, I always tell to study the theory first. In my opinion there are no shortcuts on learning DAX.

[@brianmullins8444]

I love these long-form videos! There's so much more to learn here than just the DAX functions and syntax, and even theory. I love watching the methodical stepping through from start to finish, seeing the solution evolve along the way. Using summarize to check mid-stream results is brilliant, and it is my big take-away from this one. Probably seen it done a million times, but today it struck home. Thanks!

[@omenaokoro4693]

Marco is proof that the world needs more gifted teachers. His ability to explain the theory of DAX and then translate it to practice is so much appreciated. I get DAX every time I listen to him: breaking down the logic, building the model and validating the solutions... Love it.

[@Pikachu_annoiato]

Yeah, I live in Italy for a while. Grate respect for telling "it is more important to simply think and find solution and do not try to choose solution between existing ones" Thanks for the video!!!

[@supersql8406]

That explanation of how to use the measure vs calculation between column aggregation vs row by row iteration was superb! I have a much better understanding why I had so many issues before because I didn't quite understand that concepts. Thank you!!

[@laurayork6530]

Amazing teacher. This is only my second video that I watched from him and I love the detail he provides on each segment! Outstanding job!

[@thierrythomas6640]

Even I read Dax guide and watched Mastering Dax, I still learn with your videos. Thanks a lot…

[@pepecantu9477]

Excelente curso, hoy me inscribí y lo mejor es que los videos tienen traducción al español. 100% recomendable. felicidades por tan excelente trabajo.

[@kostaskolotouros4345]

What can I say... The way you explain the concepts is just incredible! Thank you.

[@danishkhatik3955]

You're the excellent dax tutor on KZbin Thanks for making this content

[@bhakthasingh8198]

Mr Ferrari, Every single video of yours is so helpful, eye-opening and inspirational.

[@Cesarooo2010]

No idea what to say Alberto. Im really happy to learn from you. One of the best videos. End to End and easy to understand. A pleasure as always! Mille grazieeeeee. Greetings from Germany!

[@irfandaud7380]

The Quality of this video is outstanding, and explanation is at Oscar Level. Legend will always remember the great contribution of SQLBI

[@bedadhalathirumaleswarared8134]

I enjoyed a lot more DAX concepts and problem solving techniques and tools in one video. Can you please do these kind of video series regularly. Thank you so much Albero Ferrari. I am big fan of you.

[@felipesignorellireis7839]

Loved this class. Do more like this Alberto. Very very good class. cheers from Brazil.

[@omarelali]

Thank you for the extremely informative video . These are the type of videos that a DAX learner needs the most, since it illustrates practical methods of utilizing dax functions .

[@steponaszonys8385]

Amazing! I'm not an English speaker, but I understood it better than most courses in my native language.

[@ManahilNH]

This video is an excellent introduction to the DAX language! The presenter does a fantastic job of breaking down the language into understandable concepts and walking through practical examples. I feel much more confident in using DAX after watching this.

[@xiaojienan7891]

i bought your book and i found it is the best in the market, and your video is also the best

[@beginho2454]

Greatest DAX mentors, thanks Alberto and Marco 👏👏👏 Now I use DAX and PBI everyday

[@DMCOFFICESPECIAL]

Great master. Every time I see this video tutorial, I could get some new subtle point to understand. Enjoyable learning experience

[@HansdeCocq]

Thanks for this clearly explained approach ., and ..............." you proof your point!" (about learning theory first and NOT to go for "Trail on error" )

[@denizgurbuz3590]

I am so happy to find this channel. Not only teaching the DAX , but also teaching deep and flexible thinking. Mr. Ferrari , can you do me a favor? If you can make a set of videos about PowerBI Report Builder ,Paginated Reports, I would greatly appreciate it. Looking forward to seeing the set of videos as well.

[@SQLBI]

We focus on data modeling and DAX, we cannot cover everything! :)

[@MrDI7ME]

I sincerely want to thank you for your amazing explanation DAX. Friend from Saudi Arabia ❤️

[@Low_Code_DIY]

非常喜欢这位老师的视频，一直关注着，每期必看

[@assignfield6256]

This video explains real codes behind the written codes. Love you guys at the SQLBI.

[@lukaszk4388]

great video ! the way of explaining how complex results can be achieved with using simple chunks of dax is awesome! little by little and little became a lot

[@viniciusfernandes3552]

Thank you Alberto. It is always relieving watching you guys cz I see a hope one day will Master Dax. Cheers.

[@3danim8r1]

Difficult question Simple solution step by step... that is really nice...Thank you so much for sharing.

[@vyronis]

Very good full example video! It's longer than normal, but I like the idea of having a solution you need to build for, how to do it, and issues that may arise. Love your content.

[@maxpayne6317]

49:45 But at this moment we have 2 filter context: country and delivery days. So how does it knows to look at the columns?

[@shivyogi806]

We need more of such videos for: Advance Topics(DAX), please 🙏

[@wmfexcel]

This is a great video! Really appreciate it. I come from Excel world. I think what you says here can be applied perfectly to Excel too. It's not about knowing how many functions, it's about how we can use the combination of functions to solve our problem. And of course, the solid foundation is required for going further. Thank you very much. So much to learn from your channel!

[@anilsharma-iv6vd]

I loved the way the whole scenario is explained & presented.

[@ayyappagorrala7350]

WOW. you guys are real gurus of DAX. I thought 1 hr is long video, but it just went by . so immersive content. understanding everything that is shown in the video and anticipating what comes next made me feel very confident that i am not a novice . Aiming towards GURU :)

[@rajeevkumarsharma1960]

Very valuable practical session. Worth sending every second on it.

[@kittyind]

Nice to see your long video presentation. Did use dataset from Contoso 10M from Github. There was subtle differences between the data. 1. Sales order table was header table (i.e 1 order per row). 2. When #Orders/#All orders the number of decimal places was not identical to your presentation. This resulted in 100% appearing multiple times. I will work on it. 3. I liked your explanation of creating the table with curly braces and use it for calculation. I had come across similar exercise where shipment (processing time to be calculated was ranging from 15 min, 30 Min, 1 hour, 2 hour, 4 hour, 1 day, 2 day, > 3 days). I had built a customized table, rather than using curly braces table. Also in this exercise i added a new column with concatenating values with number of days as < = 1days,

[@SQLBI]

The sample data released on GitHub might be different that the one used in the video.

[@JohnSullivan1]

I feel like I learn Dax just by watching Alberto's hand gestures. 😂

[@weav8060]

An eye-talian thing

[@ismaelkourouma5558]

Because you said that now the only thing I am seeing is his hands 😢

[@agraharafamily5634]

😂😂😂

[@Jayatu_Sanatan]

😂😂😂😂😂

[@florina-vq1db]

Awesome presentation and very good examples! Thank you so much!

[@MrTC-rv3jo]

This is an amazing video Alberto! one of the best in this field and especially for those who are in the learning phase of this amazing language. Please make more of this kind! Enjoy DAX indeed!

[@andretan4606]

Your videos really teach alot of useful techniques and examples of how to apply DAX. Would love to see more of such videos where you teach how to combine different DAX functions to prepare dashboard. The concept explanation is also very important and useful..

[@bouseuxlatache4140]

thanks for those videos. you made me understand why some of my formulas were not working and the logic behind at work.

[@TheBoussadra]

Thanks, this is the best DAX tutorial I’ve seen

[@bbbradl]

This kind of foundational concept walk-thru is incredibly helpful! THANK YOU for not glossing over it. Regarding your use-case at minutes 30 - 32 "Ship Date relying on unique Order #". 1. When determining uniqueness of [Order Number], why not just highlight 'Test'[Order Number] and see that the Count = Distinct Values, rather than bouncing back-n-forth between the Sales counts and Test counts? 2. Side note: I don't agree with your assumption that [Order Number] must be unique for your results to be valid. Partial Shipments are commonplace in nearly every sales shipping enterprise. I believe that if an order were split between 5 shipments, then you'd have to ask the user if that should be treated as 5 orders, or 1 order that aggregates [Date Shipped] as "MAX", "MIN", or "AVERAGE" for that order. After all, just because your small test-case sample doesn't contain duplicates, that assumption can fall apart when you step into Production where there are millions of orders.

[@mikem2246]

One of the best teachers I'd the honor to learn 💪💪

[@bradj229]

This was an awesome walk through that covered many things in a very clear delivery. Thank you!

[@Amr-Ibrahim-AI]

Alberto! Thank you so much for this lovely video. I enjoyed every moment and I love the way you deliver information. The line of thought is well presented and takes the audience step by step into the world of DAX in the best way ever. Thank you so much!

[@__HumanBeing]

1:10:11 This is so true guys, listen to this advice, maybe it is the most important lesson of this video! Thank you so much for this Alberto!

[@michele37276]

Amazing video ! i am new to Power BI but i really love it and this example (which i replicated by myself) explains very well how DAX works; it will be long bu i will go trough all of the video as i want Power BI to be my next main tool for my next job

[@KK-kc1mf]

That is the greatest DAX guide i have ever seen! Thak you!

[@NK-xw4uu]

At 21:24, would writing CALCULATE(AVERAGEX...., ...) have given a better performance compared to AVERAGEX(FILTER......) ?

[@SQLBI]

Possibly, but teaching CALCULATE is not the first priority in this video!

[@wasfiathhar]

Detailed explanation!!! Kindly share the data file where we can do the same exercise.

[@SQLBI]

Follow the link in the video description and you can download it!

[@fiaztv3206]

absolutely incredible way to explain things. Thank you so much for your great contribution.

[@Sreelalitha1903]

Heartfull of thank you for providing such a deeper insights.very well explained.Really awesome 👏

[@kalinduSekara]

This is a very informative video. Please do more videos like this.

[@meghasyam427]

IMPORTANT!!!! At 1:01:22 you have mentioned to use removefilters(sales) to remove all the filters those are related to sales table to obtain the grandtotal of 14.95%. But If all the filters associated with sales are removed then the Store[Name] = "Online Store" should also be removed and that is not happening. This is really bugging me and hard to understand. Can someone please explain this.

[@SQLBI]

Look at the order of evaluation of CALCULATE dax.guide/calculate The REMOVEFILTERS has precedence over the filters specified in the same CALCULATE regardless of the parameters order.

[@sainadhreddyk]

Very very helpful, kindly come up with more such videos

[@HappyLandTravel]

I really like your videos, thanks for creating such wonderful lessons!

[@gokyo_66]

I followed the free Introducing DAX training offered by SQLBI and I like it very much, but I've to be honest, is because of this video here that I'm very inclined to subscribe to the Mastering DAX training course. I like the approach, that there is not a function for everything but most of the time you've to create it your own one. If Alberto can pls confirm me that Mastering DAX is following the same philosophy, very likely you'll have a new subscriber. Grazie molte

[@SQLBI]

We suggest to use the free trial, so you can see how Mastering DAX is made!

[@powerb_i]

Thank you this was a great video and very useful. Look forward to watching more videos on this channel.

[@larslindberg745]

Really good video. Alberto is a master at explaining

[@likwaitoh989]

Thank you for this awesome video. I have a question regarding the SUMMARIZE table. What if the order number has a different order date and a different delivery date? Anyone has a DAX for that? Thank you in advance!

[@padynz9869]

Thank you very much for an exhaustive and lucid video ♥

[@TNCYKR]

Thank You for your informations.. This video is very helpful. Good Day.👋

[@krzysztofc6697]

Thank you for your commitment to explaining DAX :)

[@MD-cu6wq]

Subscribed! Awesome delivery, thank you!

[@pilarbaldominos2505]

Fantastic video! I have learned a lot of tips! Thanks Alberto!

[@Anthony_Lecoq]

Thanks Alberto, Great video as usual :) I aggree practicing without the theory is like starting building an house by the roof ;)

[@PhillipLearnTeach]

How do you make a slicer as default value, they are all text like A, B, C. How are horizonal arranged and I see many examples for dates as default but text slicers not any. Thanks for this video!

[@mazchen]

Really nicely explained, layer by layer. Just one question: for the conditional formatting measure, why did you remove ALL filters? Isn't that a bit dangerous? Or in other words, is there a way to find out which filters where actually active? Edit: aha :-) you even mention that at the end. However the second part of my question remains....

[@jaliali84]

I learnt so much from this video. Great explanation thank you so much 😊.

[@erickampel8154]

best powerbi video I have seen so far !!!

[@kleimandd]

Great lesson Alberto! Thank you for sharing.

[@patrickbcox]

Another Excellent Video! Very instructive! Thanks!

[@remuslupinhp]

Thanks a lot... this is what I needed... I know the functions, but I don't know their applications.

[@vmcostaferreira]

Halfway through.. what a masterclass

[@BaniMoniah]

Very informative video, thanks a lot for the very smooth explanation 👍🏻

[@AdamCohn-jv3ng]

I'm am new to DAX, but always try to make thing more flexible. I'm not a Keepfilters expert, but would keeping the filters on the columns and let flexibility on the row work?

[@AmitSingh-er3lk]

what to do if we wan order days dynamic as you have created calculated table with manual number of order days... if we have more than 15 delivery days.

[@aatsw]

Very neat, and informative. Well done, and thank you.

[@zaheralashker194]

Great methodology to explain, thank you so much

[@kamransamad9686]

Great, definatly join the training for bigners and then Mastering it.

[@rachellim4147]

Thank you very much ! Love it , learnt a lot of knowledges ! Please do more video like this

[@andreweagleton8879]

Of course Alberto is amazing and this was pedagogical in nature… but it is simpler in this example to create a calculated column in the orders table that evaluates the delivery days band using a switch statement. This avoids messing around to hide the repeated 100% and is almost certainly faster. Yes it adds a column to the fact table but it takes up negligible space due to the low cardinality.

[@julie_chen]

Wow, learned a lot just from this video. 🙏🙏🙏🙏👏👏👏👏

[@gregoryoliveira8358]

Great video as usual! Thanks for all this great material! Enjoy DAX! 🙂

[@phuocvuhoang3606]

Thank you very much for sharing, I learned a lot

[@محمدشاجعالشميري]

Good explain 🌹 Do You Have Alot of Dax course ?

[@SQLBI]

You can find them on www.sqlbi.com/training - you can start with the free Introducing DAX video course!

[@eleazarmontano9715]

Great explanation and samples

[@haribabuk5162]

thank you for your dax viedoes.if you provide the data set it will definitly helpful to practice. thanks again

[@SQLBI]

Follow the link in the description to download the sample file.

[@milosmil]

Beautifully explained. Thank you!

[@nehakhanna5893]

Need more of these !! ❤

[@holahandstrom]

Previous value : CALCULATE( SELECTEDVALUE( Days[Day] ); OFFSET( -1; ALLSELECTED( Days[Day] ) ) )

[@mohsenabdelbaset]

thank you so much Alberto for this Great video