Topic: DAX

        Page 36 of 387 posts
blog post –

DAX Deep Dive at #sqlbits9

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

blog post –

PowerPivot, basket analysis and the hidden many to many

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

blog post –

Recursive calculations in MDX #ssas #mdx

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

blog post –

The Last Ever Non Empty calculation in MDX

Chris Webb posted a wonderful solution to the Last “ever” non empty calculation in MDX . I never thought to this solution and it is really a nice approach. I think that DAX might be faster in this scenario – a similar calculation has been shown in this  Read more

blog post –

Thinking in DAX (#powerpivot and #bism)

Last week Alberto published an interesting post about Counting Products in the Current Status with PowerPivot . Starting from a question raised from a reader, Alberto described how to solve a common issue (let me know the “current status” of each item  Read more

blog post –

Difference between DISTINCT and VALUES in DAX

I recently got a question about differences between DISTINCT and VALUES in DAX and thanks to Jeffrey Wang I created a simple example to describe the difference. Consider the two tables below: Fact and Dim tables, having a single column with the same name  Read more

blog post –

Parent-child hierarchies and unary operators in PowerPivot

Alberto wrote an excellent post describing how to implement the Unary Operator feature (which is present in Analysis Services) in PowerPivot (there was a previous post about parent-child hierarchies, too). I have to say that the solution is not so easy  Read more