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In my previous post about impersonation , I mentioned that DirectQuery impersonation was a bit tricky. That is because there is a special project property called Impersonation Settings that determines the credentials to use when connecting to the data source. The MSDN documentation of this property is...

If you look at my previous post on the tabular project structure , you’ll see this teaser: “There are a couple of other files in the project folder, an optional ABF file and a hidden user settings file, but I’ll talk about those another day.” The ABF file description I just put off because it was complicated...

If you look in the metadata of a BIM file, or if you look at the .dax file generated by the DAX Editor , you will see the following perplexing comment: -------------------------------------------------------- -- -- PowerPivot measures command (do not modify manually) -- -----------------------------...

You’ve run the import wizard, and imported a bunch of tables into your tabular model. Now you want to import one more from that same connection. How do you do this? What you need is the Existing Connections dialog. To start the Existing Connections dialog, go to Model->Existing Connections or click...

Now that RC0 has arrived I can finally post about security for tabular models. I have put off writing about security because I think the RC0 documentation on this subject is really quite good so I don’t have too much to add. Also, we had a minor feature add for RC0 that is very exciting. You can now...

If you look carefully, you can see my roots showing. No, not my hair – you can see my old job showing. When I came to work on the Analysis Services team, we had to design an “environmentally friendly” Visual Studio package in a hurry using the Visual Studio extensibility framework , same as everybody...

In PowerPivot, the Edit Table Properties dialog box is used for a few things. It is used to add columns to a table, remove columns from a table, and adjust the set of rows included in the table. This works great for PowerPivot. All the data in the PowerPivot model is stored in a single partition, so...