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  • GROUPBY vs SUMMARIZE in #dax #powerbi #powerpivot

    If you are using Power BI Desktop or Power Pivot in Excel 2016, you should learn when and how you can use GROUPBY instead of SUMMARIZE. The SUMMARIZE function is very powerful and internally very complex, so it’s easy to find scenarios where you get unexpected results or you have performance issues. The new GROUPBY function (also available in SSAS ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on February 15, 2016
  • Conferences and Training in Australia Feb/Mar 2016 #dax #sqlsaturday

    In a couple of weeks, I will move to Australia for 3 weeks, visiting Melbourne and Sydney for a number of events and training. This is the list of topics in public events you can attend (with link to registration pages – remember that SQL Saturday conferences are free events, but you still have to register first!): UPDATE 2016-02-08 - added a ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on January 31, 2016
  • Create static tables in Power BI, Power Pivot, and Analysis Services #powerbi #powerpivot #ssas #tabular

    I recently wrote an article about how to Create Static Tables in DAX Using the DATATABLE Function. Such a new DAX feature (the DATATABLE function) will be likely used in the upcoming Analysis Services Tabular 2016, but it is not used neither in Power BI nor in Power Pivot to create static table. For this reason, I think that it could be useful to ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on January 26, 2016
  • The State of Power BI #powerbi

    The 2015 has been an amazing year for Power BI. One year ago, I was commenting on this blog the public preview of Power BI dashboards. A few days ago, Microsoft released the December update of Power BI Desktop and several updates of the Power BI service. In one year, we moved from a situation where Microsoft seemed (and actually was) too slow in ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on December 21, 2015
  • Display data on customized maps in #powerbi (also offline) leveraging SVG format

    Last week Amir Netz presented in the Power BI blog a detailed introduction to the Synoptic Panel written by Daniele Perilli. This component won Power BI best visual contest in October, but since then we received many feedback and Daniele worked on it improving the editor and the available features. The big news is that now the Synoptic Panel ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on December 15, 2015
  • PASS Summit 2015 and news about on-premises BI #ssas #tabular #sqlpass

    I don’t usually blog about news, unless there is a relevant impact on future directions. Last week we have seen a huge number of announcements for Power BI (Custom Visuals now available to anyone through a gallery online, you can import them in also in Power BI Desktop, and a number of improvements in Power BI Service and a new version of the ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on October 26, 2015
  • Challenge your #dax skills with DAX Puzzle #powerbi #powerpivot

    Last week we launched a new page in SQLBI website: DAX Puzzle (you can also use www.daxpuzzle.com). The idea is very simple: we describe a scenario, we ask to solve a problem in that scenario and we might provide some hint to help you finding the solution. You can download a sample file (in Power BI Desktop, which is freely available to anyone – ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on October 21, 2015
  • The Definitive Guide to DAX is now available! #dax #powerpivot #powerbi #ssas #tabular

    I am so happy to announce that The Definitive Guide to DAX is finally available! I and Alberto Ferrari spent one year writing this book, and several years collecting the knowledge necessary to do that. The complete title is The Definitive Guide to DAX: Business intelligence with Microsoft Excel, SQL Server Analysis Services, and Power BI. You can ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on October 20, 2015
  • Synoptic Panel for Power BI Best Visual Contest #powerbi #contest

    Today (September 30, 2015) is the last day to submit an entry in the Power BI Best Visual contest. I and Daniele Perilli (who has the skills to design and implement UI) spent hours thinking about something that would have been challenging and useful at the same time. Daniele published a couple of components (Bullet Chart and Card with States) that ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on September 30, 2015
  • Don’t ignore the Context Transition in #dax

    Almost 3 years ago I wrote an article with the rules for DAX code formatting. If you quickly look at the article, you might think that it is all about readability of the code, and this is fundamentally true. But there two rules that have a particular importance for performance, too: Never use table names for measures Always use table names ...
    Posted to SQLBI - Marco Russo (Weblog) by sqlbi on September 22, 2015
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