It is very common to need to transform data from one “shape” to another “shape” before it can be used inside Power BI for analysis (although many beginners don’t realise this). One such example is shown below, where the data in the table on the left hand side needs to […]
I had an interesting question from one of my book readers and I thought it would make a good blog article. There are many ways of solving this problem, and I blogged about solving a similar problem Fill Table with Last Survey Result using DAX here. The solution I am providing in […]
I was trying to clean up my hard disk drive on my PC the other day. I use a program called WinDirStat to show me graphically what is taking space (as an aside, this is great software and you can download it here). After running the software I noticed that […]
I was answering a question for a student in one of my online training courses this week. The question was, “Do you know of a way in power query to efficiently extract YYYY-MM from a Date column?” This can be done ‘manually’ with multiple steps including: Extract the Year into […]
My series about common patterns for loading data using Power Query received quite a lot of interest over the last few weeks. You can review those articles in the links below Combine all files in a folder with Power Query. Load the Latest Version of a File with Power Query. […]
There are quite a few different common business scenarios where you get data in the form of a file on a regular basis. The 3 common patterns I use most often are. Each day/month/year you get a new file containing incremental data. All the data in all the files need […]
Late in 2018 there was a new Power Query book written by Gil Raviv called Collect, Combine and Transform Data Using Power Query in Excel and Power BI. That’s a bit of a mouthful actually; maybe the title was influenced by the same people that call Power Query “Get and […]
There are quite a few common business scenarios where you get data in the form of a file on a regular basis from some source system and you need to process these files into your Power BI reports. There are 3 common patterns that come to mind. Each day/month/year you […]
I was chatting to a few of my Power BI buddies during the week about when we thought the December 2018 update would be released. It seemed to me that under normal circumstances the new version is released on or about the first Monday (US time) on or after the […]
A common problem I see some people struggle with in Power BI is when a slicer contains a (Blank) record for some reason. The cause of the problem is not obvious and hence it is not clear how to fix it. This article describes what causes this to occur and […]
I had a question from one of my online Power BI Training students just this week who was struggling to import data from a large *.xlsb Excel file. I suggested she save the file as an XLSX file and try again – and that worked a treat. But the question […]
A few weeks ago I wrote an article introducing dataflows in Power BI and discussed why you should care about them. There are a few questions that have been spinning around in my head since then, significantly: What implication is there to the Power BI Golden Dataset as a result of […]
Microsoft recently released a new feature in Power BI called “Dataflows”. You may have seen it pop up in a recent release of Power BI Desktop under Home\Get Data\Power BI Dataflows (beta) as shown below. It is also visible when you log into PowerBI.com and go to an App Workspace […]
Today Microsoft released the October 2018 update of Power BI Desktop. One of the fabulous new features that has been released is the ability to get a visual profile of your data in Power Query BEFORE you load the data. This new feature is typical of the type of development […]
Level: Beginners Power Query is a product that allows business users to extract data from any source, cleanse and transform that data, and then load the modified data to a new location, typically into an Excel spreadsheet or a Power BI data model. Power Query is very easy to learn, […]
I was in Seattle, USA in the last week of July participating in the Microsoft Business Applications Summit (MBAS). I love attending conferences like this and it was a privilege to present on a few topics over 3 days. Evaluation contexts in Power BI DAX One of the presentations I gave […]
Way back in 2014 I decided to check out what Google Trends had to say about Power Pivot and Power Query global Interest. In case you don’t know, Google Trends will show you the relative frequency of people searching for certain words – it is a good indicator of interest […]
One thing I did a long time ago was set up my own forum called PowerPivot Forum. This forum is open to anyone to join and to ask questions and/or help others. If I have any spare time (decreasingly so these days), I help people out on the forum too. It occurred […]
Power BI gets a lot of love – and it deserves it. But under the hood you will probably know that there are 2 technologies that are the true work horses that prepare the data for use. Those 2 products are Power Query and Power Pivot. Power Query is the […]
Matt Here: I first met Ivan via Twitter when he was living in Russia, and then in person when he moved to Australia to live in Sydney with his family. Ivan is a talented Power BI professional and I have learnt many things from him over the last few years. […]
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