Alberto Ferrari's Blog posts of 2011
SUM or SUMX? With Simple Intermediate Calculations SUMX Is The Way To Go
Data modeling in Tabular is different from Multidimensional. I spend much time teaching people that they need to change their mind when approaching the Vertipaq engine, because it is a different tool with different capabilities. Nevertheless, I still Read more
PASS Summit 2011: good time for a chat on DAX?
This year I and Marco Russo will host a Birds of a Feather lunch about “ DAX, Vertipaq and BISM Tabular ” during PASS Summit in Seattle. If you want to spend some time speaking about DAX, the new Vertipaq engine of just have a good chat in front of some Read more
Creating a copy of a BISM Tabular project
Using Visual Studio to author SSAS Multidimensional projects, I was used to copy the project, deploy it with another name and then proceed with updates, until I was satisfied with the final result. Then, working with the two projects side-by-side I could Read more
KEEPFILTERS: a new DAX feature to correctly compute over arbitrary shaped sets
Having read this question on the mdsn blogs , I investigated on the KEEPFILTERS function and, after having learned it, it is now time to write about it. Moreover, before start to write about it, I need to thank the dev team of SSAS and Marco Russo who Read more
Deep dive day on #DAX at #SQLBits
September 29th I and Marco Russo will be delivering a full day of deep dive into the DAX programming language, during the training days of SqlBits 9 . Later on, during the conference, I will deliver a session about many to many relationships in DAX, exploiting Read more
#PowerPivot Webinar, august 17th at 11 AM CET
Tomorrow, at 11 AM CET, I will deliver a webinar on how to produce interesting reports with PowerPivot, a webcast which is a first taste of my incoming session for the European Sharepoint Conference. You can see all the details here: http://www.sharepointeurope.com/upcoming-webinars/self-service-bi-at-work,-an-example-of-a-powerful-user-created-report-in-powerpivot.aspx Read more
PowerPivot Workshop in Portugal #PowerPivot, #ppws
A new date is available for the PowerPivot workshop I and Marco are delivering all over Europe. On September 19-20 , 2011 we will be in Lisbon (Portugal) to present the workshop to Excel users and BI professionals. Moreover, as Denali CTP3 of PowerPivot Read more
OT: New transaction in the World Database
Wow! Today I hit F5 on this interesting transaction: BEGIN TRANSACTION INSERT INTO World.Babies (Name, Surname, DateOfBirth, Gender) VALUES (‘Arianna’, ‘Ferrari’, ‘20110720’, ‘Female’); UPDATE World.Parents Read more
Tabular Parent/Child Dimensions: SumOfLeaves and the CALCULATE wall
In my last post about Parent/Child hierarchies , there is a question, in the comments, that I found interesting. Nevertheless, the formula is a complex one and cannot be written in a simple comment. Thus, I am making a follow-up to that post. I am not Read more
Parent/Child Hierarchies in Tabular with Denali
Some time ago, I wrote a post about how to handle Parent/Child hierarchies in PowerPivot 1.0. It was pretty intricate, because P/C are not handled natively in PowerPivot. Now, with the advent of Denali, Microsoft gave us all the functions needed to handle Read more