UPDATE: This blog post is still good for learning DAX principles, but a better description of many-to-many patterns is available on The Many-to-Many Revolution whitepaper that is available here: http://www.sqlbi.com/articles/many2many/ – please download  Read more

The project codenamed Gemini has an official name now: PowerPivot . The complete name should be “PowerPivot for Excel 2010”, but PowerPivot is simpler. I didn’t like that name yesterday, but today it seems better. Microsoft announced this name at the  Read more

In these days, I’m starting to use Gemini and I’m discussing about it in dedicated CTP newsgroups. I recently wrote a message that I’d like to share here, but not before some considerations. First of all, like Chris said , Gemini is less than a threat  Read more