There’s so much going on in the Fabric community that it can be hard to keep up with it all. Semantic Link Labs is a great example: in the six months or so since I last had a proper look at it my ...

Back in September 2024 I wrote a blog post on how to create multiple copies of the same dimension in a Direct Lake semantic model without creating copies of the underlying Delta table. Not long after ...

One of the most common errors you’ll see when working with Power Query in Power BI or Excel is this: It can occur with almost any data source and in a wide variety of different circumstances, and for ...

There are a lot of articles and blog posts out there on how to handle OAuth2 authentication when connecting to REST APIs from Power Query in Power BI. However there is also a lot of confusion and ...

Recently we announced an important new optimisation for DirectQuery datasets: the ability to run (some) of the queries generated by a single DAX query in parallel. You can read the blog post here: A ...

Something I do all the time when performance tuning Power BI is use SQL Server Profiler to monitor query and refresh activity. There’s a handy external tool that lets you open up Profiler with a ...

A long time ago someone – probably from the Power Query dev team – told me that adding primary keys to M tables could improve the performance of certain transformations in Power BI and Excel Power ...

If you have a lot of Power BI semantic models that are scheduled to refresh at the same time in the Service then you may find that some of them fail with the following error: You’ve exceeded the ...

The Web.Contents() function in M is the key to getting data from web pages and web services, and has a number of useful – but badly documented – options that make it easier to construct urls for your ...

You probably know that semantic models in Power BI can use a fixed amount of memory. This is true of all types of semantic model – Import, Direct Lake and DirectQuery – but it’s not something you ...

There are loads of great new features in today’s release of Power BI Desktop, but for me the most important by far is the introduction of calculated tables. Miguel Llopis gives a good introduction to ...

In my recent post on web services in Power Query I mentioned that while the Power Query Web.Contents() function generates a GET request by default, you can make it generate a POST request by ...