Archive - Blog Posts on DAX

Quick Measures and Query by Example - 2 fabulous new updates again in the April update of Power BI Desktop.  Here is my quick review so you can see how great these things are. Quick Measures Quick measures are designed to help you get started with DAX, without knowing any DAX!  OMG I will be out of a job!! Once again this […] Read More
Uses for DAX as a Query Language - This is the final article in my series about DAX as a Query Language.  In my first article I introduced DAX as a Query Language and then in my second article I went in deeper to the specifics on how to use some of the more useful DAX query functions.  In this final article today […] Read More
An Introduction to DAX as a Query Language - Level: Intermediate I have written quite a few articles that contain embedded references to DAX Queries and DAX Table functions in the past.  Today I am writing an article that introduces the DAX query language from the beginning so you can learn how to use it and how it will help you to become a […] Read More
Power BI Skills – Thinking of Data in Tables - Level: Beginners One very important concept that Excel users often struggle with when starting on their Power BI and Power Pivot journey is that they need to learn to think about data in tables rather than thinking about data in cells.  In the spreadsheet world every cell can be a different formula or value, but […] Read More
SQL Saturday Melbourne Feb 2017 Materials - I am currently in Melbourne for PASS SQL Saturday 2017.  SQL Saturday is an annual one day conference event that occurs in many major cities around the world.  It is focussed on helping SQL Server professionals learn more about their profession and also network with other like minded people.  I have a lot of people […] Read More
Best Practices for Power Pivot, Power Query and Power BI - Level: Beginners There are many best practices for Power BI, Power Pivot and Power Query.  I know these things so intuitively now that it is very easy to forget how I incrementally learnt these things along the journey.  Most of these things are not “right” vs “wrong” – they are more often simply “better”.  I thought there […] Read More
DAX Time Intelligence Explained - Level: Beginners I help a lot of people on forums who ask questions about time intelligence for DAX.  If you are just starting out then the chances are that you may not even be clear what time intelligence is and hence sometimes you don’t even know what to ask.  Often the question is something like […] Read More
Find Duplicate Files on Your PC with Power BI - Level: Beginners If you want to learn new skills using a new tool, then you simply must practice.  One great way to practice is to weave the new tool into you daily problem solving.  If you have something meaningful to do with the new tool, then you are much more likely to be motivated to […] Read More
Use Power Query to Manage Dropbox Space - Level: Beginners I got this dreaded Dropbox email recently as shown below. I needed to clear out some of the files I have loaded in Dropbox so I didn’t have to upgrade my account.  It occurred to me that I could make this process a lot easier by using Power BI to quickly show me […] Read More
Who Needs Power Pivot, Power Query and Power BI Anyway? - Level: Beginners One of the great challenges Microsoft has faced with its “new” suite of Self Service BI tools (particularly Power Pivot) is that most people that could benefit from the holy trinity (Power Pivot, Power Query and Power BI) don’t even know these tools exist, let alone how the tools can help them succeed in […] Read More
Measures on Rows – Here is How I did it - Level: Intermediate You may or may not be aware that it is not possible to put Measures on rows in a Matrix in Power BI. But I came up with a trick that makes it possible, so read on to find out how. Measures Can Only be Placed on Columns First the problem. The only […] Read More
LASTNONBLANK Explained - Level: Intermediate Last week at my Sydney training course, one of the students asked me a question about LASTNONBLANK.  This reminded me what a trickily deceptive function LASTNONBLANK is.  It sounds like an easy DAX formula to understand, right?  It just finds the last non blank value in a column – easy right?  Well it […] Read More