Topic: DAX

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Banding with PowerPivot

Banding is one of the most common requirements when you have the need to analyze continuous values, like the retail price of a product which may change over time, due to discounts and price variations. I have already spoken about banding with regards  Read more

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PowerPivot book RTM! And some DAX thoughts…

Yesterday I had a nice time delivering the SQLBI Methodology session at 24 Hours of PASS . A few hours later, I had the news about the official RTM of the PowerPivot book I wrote with Alberto. The complete title is Microsoft® PowerPivot for Excel® 2010:  Read more

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Rounding functions in DAX

Today I prepared a table of the many rounding functions available in DAX (yes, it’s part of the book we’re writing), so that I have a complete schema of the better function to use, depending on the round operation I need to do. Here is the list of functions  Read more

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TechEd NorthAmerica 2010 (and MS BI Conference 2010) Sessions

I just read the Dave Wickert post about his sessions about PowerPivot from Microsoft at TechEd 2010 in New Orleans (June 7-10, 2010) and there are at least two things I’d like to add. First of all, there is also another conference! In fact, this time  Read more

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Notepad++ used as DAX editor

If you use PowerPivot and write some DAX formula, don’t miss this post on PowerPivotPro blog – if you want to get an external editor for your DAX formula, you can use Notepad++ for free – and adding the customization described in this post by Colin Banfield,  Read more

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ALL, ALLEXCEPT and VALUES in DAX

When you use CALCULATE in DAX you are creating a new filter context for the calculation, based on the existing one. There are a few functions that are used to clear or preserve a column filter. These functions are: ALL – it can be used with one or more  Read more

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How to relate tables in DAX without using relationships

UPDATE 2017-07-12: please note this article was written in 2010, there are now better ways to obtain the same result. Please read these articles: Physical and Virtual Relationships in DAX and Propagate filters using TREATAS in DAX PowerPivot supports  Read more

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Avoiding calculated column in DAX

A calculated column is a DAX expression which is evaluated when the PowerPivot workbook is updated. It is very useful, but there are cases where you want to delay calculation at query time. For example: You want to make part of the calculation depending  Read more

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Memory Considerations about PowerPivot for Excel

PowerPivot for Excel is an Add-In which uses a local version of Analysis Services (SSAS) to process data and make calculation to respond to user queries made using Excel 2010. The SSAS engine is loaded in-memory in the process of Excel. Especially with  Read more

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ABC Analysis in PowerPivot

The calculation for ABC analysis can be made in PowerPivot using calculated columns. In this way each row can have an attribute with the appropriate ABC class. The ABC calculation has to be made considering a particular grouping and sort order. For example,  Read more