I have experienced (on difference customer’s databases) some performance issues related to security in SSAS Tabular models. The symptoms are that certain queries, pivot table, or reports, have good performance when you connect as a database administrator,  Read more

This short blog post is a note that could help myself in the future, or anyone who is interested in writing a client tool for Analysis Services. When you establish a session to Analysis Services, you can run both DAX and MDX statements. In DAX, you can  Read more

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.  Read more

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  Read more

While I am teaching Mastering DAX and Optimizing DAX classes, I am always available to speech at local user group events. This week, I will present an updated version of the “Toolkit for DAX Optimization” in Amsterdam, on Thursday, November 26, 2016.  Read more

I recently write a small article on SQLBI to describe how to create a DAX measure that search for items that have all the items selected in a slicer, instead of any of them. For example, you might want to create a measure that display how many customers  Read more

David DeWitt and Rimma Nehme delivered the day 2 keynote at PASS Summit 2015 talking about Internet of Things. Many PASS attendees know David for providing some of the best keynotes every, technical and without vaporware and marketing stuffs. So this  Read more

I’m sitting at the bloggers table at the Day 1 keynote of PASS Summit 2015 and I try to recap the important news for the BI community. SQL Server Analysis Services 2016 CTP 3 will be available in a few days here , but Microsoft already announced the news  Read more

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  Read more

If you use Analysis Services Tabular, you should dedicate a good amount of time in hardware selection. Unfortunately, throwing money in expensive hardware configuration could be a very bad idea, resulting in your 1,500$ desktop running faster than your  Read more