I recently published a video session on Project Botticelli web site regarding querying in DAX. You can write DAX queries to extract data from both PowerPivot and SSAS Tabular models. This could be particularly useful in three scenarios: Reports in Reporting  Read more

I and Alberto Ferrari will speak at SQLBits XI (Nottingham, UK – May 2-4, 2013) and there are many good reasons to join us there, especially if you are interested to DAX! Here are our sessions: Thursday, 02 May 2013 – Training Day - From 0 to DAX The  Read more

DAX offers a set of Time Intelligence functions that simplify writing DAX expressions such as YTD, YOY and other time-related calculations. However, these functions only works when some assumptions are valid: your periods should be “natural” months and  Read more

Are you working with SSAS Tabular? Are you an experienced PowerPivot user? In both cases, you should be aware that there is only one skill that is important for PowerPivot and SSAS Tabular, and it is the DAX language. I and Alberto have been using DAX  Read more

Apparently Excel does not offer a way to import data in Excel by using a DAX query on Analysis Services. The Data Connection Wizard seems to offers only the ability to create a PivotTable when you connect to Tabular, but not a Table (see the Table option  Read more

This year is going to end, Maya failed their predictions and while this is bad for predictive industry, it’s also good for all of us! We’ve seen many news in Microsoft BI stack: Excel 2013 has been RTM’d – its General Availability is expected in early  Read more

The DATE function in DAX has this simple syntax: DATE( <year>, <month>, <day> ) If you are like me, you never read the BOL notes that says in a clear way that it supports dates beginning with March 1, 1900. In fact, I was wrongly assuming  Read more

Next week I and Alberto Ferrari will be in Seattle at PASS Summit 2012 . You can meet us at our sessions, at a book signing and hopefully watching some other session during the conference. Here are our appointments: Thursday, November 08, 2012, 10:15  Read more

I recently published a set of rules for DAX code formatting . The following is an example of what I obtain: CALCULATE ( SUMX ( Orders, Orders[Amount] ), FILTER ( ALL ( Customers ), CALCULATE ( COUNTROWS ( Sales ), ALL ( Calendar[Date] ) ) > 42 + 8  Read more

Recently I had to write a DAX formula containing a LASTDATE within the logical condition of a FILTER: I found that its behavior was not the one I expected and I further investigated. At the end, I wrote my findings in this article on SQLBI , which can  Read more