Archive - Blog Posts on Power BI Desktop

Build a Reusable Calendar Table with Power Query - I wrote a blog on this topic a few years ago over at PowerPivotPro.com.  I have learnt a lot about Power Query since that time, plus Power Query has come along in leaps and bounds, and it now has a lot more capability than it had previously.  Today I am going to write a new […] Read More
Text Filtering in Power BI - There are lots of different ways you can filter data in Power BI including: Slicers (with various configurations) Cross filtering from any visual object The filters pane on the right hand side of your report Custom visuals designed specifically for filtering Most of these standard filters require you to select on a specific value from […] Read More
New Power BI Reports from a Golden Dataset - This is an update to an article I first wrote on 18th April 2017.  At that time, connecting Power BI Desktop directly to the Power BI Service was just a preview feature. This feature is now generally available and hence it seems like a good time to update this post and talk about why you […] Read More
Changing Defaults in Power BI - Changing Defaults In March 2017, the Power BI team delivered a new feature that allowed you to change the colour defaults in a Power BI report using a custom colour theme.   I wrote a blog post over at PowerPivotPro.com at the time.   The drawback of this feature, as it was back in March, was that you needed to […] Read More
Extract Table Size from Power BI Desktop Using DAX Studio - I was explaining to one of my blog readers recently how to extract table size from Power BI Desktop using DAX Studio and thought it would be useful for others.  I have covered the basics of DAX Studio in the past so I wont cover this detail again here. The latest version of DAX Studio can be […] Read More
Conditional Formatting in Power BI - Level: Beginners I blogged on conditional formatting in Power BI Table visual here when it was released in the May 2016 Power BI Desktop update. At the time of first release, the conditional formatting was pretty basic with only 1 formatting option available. Over time, Microsoft has improved this feature, and now, it is available in both Table and […] Read More
Sales of Same Products to Other Customers - Level: Intermediate I was helping someone on a forum recently and I thought the question and solution would make an interesting blog article. I have adapted the scenario to work with Adventure Works customer purchases, but this concept would work equally well across other entities, such as sales territories, calendar years etc. Problem Definition The […] Read More
Lineage in DAX - Level: Intermediate–Advanced I have covered the topic of Lineage in DAX a few times in the past (within other articles).  Today I thought I would write a single post dedicated to lineage. As you may know, Power BI has a number of different operation modes, some of which do not require the data to be […] Read More
Q&A in Power BI Desktop - Regular readers of my blog probably get sick of hearing me rave about the latest new thing in Power BI.  This month there is an absolute cracker – Q&A in Power BI Desktop.  In case you don’t know, Q&A is a natural language query tool that allows you to ask a question about your data […] Read More
Virtual Filters Using TREATAS - Level: Intermediate I have been aware of the TREATAS function for a very long time.  I have tried to understand how it works a few times but could never really work it out. I think part of the problem is the function name TREATAS is not very descriptive.  To contrast this point, the FILTER function […] Read More
Line Chart Conditional Formatting - I’m really pleased and excited to introduce you to Daniil Maslyuk (Twitter: @DMaslyuk).  I first met Daniil about a year ago (originally via email) as he was preparing to move to Australia.  Daniil made the plunge shortly there after and migrated to Australia (from Russia) – he now works as a Power BI consultant for Agile BI here in […] Read More
Killer Tips to Write Harder Measures - Level: Intermediate Background I was reading the questions at http://community.powerbi.com today and saw an interesting question.  In short the OP wanted to know if there was a way to identify (via a measure) if the row in a table had a colour =”Blue”, but also to check that there were no other rows with the […] Read More
DAX UNICHAR Function in Power BI - I first learnt about the new DAX UNICHAR function in Power BI by reading Chris Webb’s blog (which was also the inspiration for this article today).  One of the uses of the UNICHAR function is to be able to include non text characters inside visuals.  When you combine a logical set of these codes (icon sets) you […] Read More
Power BI Accounting Format of Dollars - Level: Beginners As I often say, sometimes it is the little things that can make a big different for some people – in this case Accountants. I was teaching a Power BI class a few weeks ago and I was discussing how the number formatting options work in Power BI.  One of my students (Sheldon) […] Read More
New Functions – GENERATESERIES, SELECTEDVALUE - Level: Beginners/Intermediate In the August 2017 update of Power BI Desktop Microsoft released the new What If feature (first demonstrated at MDIS in July).  This new What If capability uses two new DAX functions to complete a task that you have always been able to do manually.  You still can of course still do it […] Read More
Measure Dependencies in Power BI - Update 21 Feb 2018: There are 2 versions of this localhost workbook. One works with the downloadable version of Power BI Desktop and the other works with the Microsoft App Store version.  There were some technical issues in late 2017, but as at Feb 2018 everything seems to be working fine again. I was chatting […] Read More
Happy Second Birthday Power BI - The 24th of July, 2017 is the second birthday for Power BI.  I thought I would take the occasion of its second birthday to reflect on all the great work that the crack Power BI team at Microsoft has done over the last year.   I think it would be a tough job working in […] Read More
The ALL() Function in DAX - Level: Intermediate In this article I am going to write about the ALL() function, show how it works and explain a common use case.  I will also cover the unexpected behaviour that occurs when using the ALL() function in Power BI Desktop – more on that later. For this article I will use my simplified copy […] Read More
Understanding Power Query Combine - Level: Intermediate Sometime late in 2016 Microsoft deployed a new “Combine” feature in both Power Query for Excel (Get and Transform) and also in Power BI Desktop (Get Data).  The new capability makes it easier to combine multiple copies of similar workbooks into a single table without hand coding M Functions, but unfortunately it is now […] Read More
Secret Insider Update on New Power BI Features From MDIS - Today I sat through the Keynote session at the Microsoft Data Insights Summit.  As expected, James Phillips confirmed that MS has been holding back a few killer features to announce at the Summit.  Here is the list of new things that are coming that I wanted to share with you – I am truly excited. […] Read More