In the PowerPivot book and in the PowerPivot Workshop I mentioned the difference between implicit and explicit measures. The use of implicit measures might be confusing because at the end they are automatically created and maintained by the user interface  Read more

It seems that the next SQLBits will be larger than ever! The SQLBits 9 will take place in Liverpool from 29th September to 1st October 2011. It will be hard to get a nicer weather than in Brighton, but we will try to bring a bit of sun from Italy! I and  Read more

Alberto anticipated me announcing our next edition of the PowerPivot Workshop in Lisbon (Portugal) on September 19-20, 2011. The announcement has been published also on the SQLPort website in Portuguese! But remember, the workshop will be entirely in  Read more

Alberto Ferrari published an interesting blog post regarding how to write particular calculations over a parent-child hierarchy in PowerPivot Denali (and in BISM Tabular, of course). One case is the Sum of Leaves (summing only the leaves of a parent-child  Read more

The Analysis Services team just posted a blog entry with a few useful links to jumpstart your experience with Tabular project in Analysis Services “Denali”. In these early days I read several messages asking for clarification about the names and acronyms  Read more

I and Alberto Ferrari will present a DAX Deep Dive training day at SQLBits 9 in Liverpool, on September 29th. The conference will continue on September 30th and October 1st. Registrations are not yet open, but you should definitely save the date for SQLBits!  Read more

Surfing on the web, here , I came into this intriguing question: How do we ask something like “Show me how many customers have an iPad but don’t have a book?” We are speaking about a sales analysis where the canonical entities are Customers, Products  Read more

During TechEd 2011, Microsoft announced an important update to its BI roadmap . The reason why this is important is related to the previous announcement, which I discussed in November 2010 by including links to several sources and comments. At PASS Summit  Read more

In the last months I talked mostly about PowerPivot, but Analysis Services is still growing and a very good sign of that is the number of downloads of The Many-to-Many Revolution whitepaper, who has been published almost 5 years ago and recently surpassed  Read more

Jeffrey Wang wrote a very detailed blog post about recursive calculations in MDX with Analysis Services. In these days I’m doing some comparison between DAX and MDX (well, between Vertipaq/PowerPivot and OLAP/SSAS engines) and I’m discovering that MDX  Read more