Creating Distinct Count calculations in DAX is pretty easy when the target of the operation is a column in the “fact table” of a star schema. When you want to apply the DISTINCTCOUNT function to a dimension attribute (such as Customer Country, Product  Read more

The first pattern published on www.daxpatterns.com is the Cumulative Total . Another common name of this calculation is Running Total, but the reason why we named the pattern in this way is that we identify all those scenarios in which you want to obtain  Read more

I’m very proud to announce the official launch of the DAX Patterns website! http://www.daxpatterns.com I and Alberto Ferrari worked on this idea for a really long time. Many business scenarios can be solved in Power Pivot using always the same models,  Read more

I wrote an article about how to get the Last Process Date in SSAS Tabular . This is a common request and there are many ways to obtain this information. You can use the metadata provided by XMLA or DMV, just as you can do in SSAS Multidimensional. Or  Read more

Now that Power BI is finally available (I still use terms as “released” for software and “in production” for a service…) I made some test on the new Scheduled Refresh option that you have for your models (other info here . First of all, the Refresh feature  Read more

Last week I wrote an article about Natural Hierarchies in Power Pivot and Tabular where I show why it is important creating natural hierarchies for performance reasons. I’d like to spend a few words about the reasons why this is so important, so you might  Read more

In the last months I and Alberto Ferrari worked on many consulting engagements about designing Tabular models or optimizing existing ones. One of the strength of the Tabular model compared to Multidimensional is the performance of distinct count measures.  Read more

I had an issue in a query that reminded me a few details naming columns created by ADDCOLUMNS. When you specify a simple name in ADDCOLUMNS, you can use it later, for example in a SUMMARIZE or in a FILTER expression, such as in the following example (see  Read more

I hadn’t time in the last two months for new blog posts, but with some good reasons! I’ve been busy putting DAX Formatter online and writing some other stuffs that I will be happy to share very soon, aside from daily engagements with customers, of course.  Read more