Here’s yet another post in my series on things I think you should be doing in Power BI Copilot AI Instructions. Today: validating values that users enter as filters in their prompts. It’s something of ...

Continuing my series on Power BI Copilot AI Instructions (see also my previous post which is the only other one so far), in this post I’d like to show some examples of how you can specify groups of ...

One of the most common errors you'll see when working with Power Query in Power BI or Excel is this: Expression.Error: The key didn't match any rows in the table It can occur with almost any data ...

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 ...

AI is meant to help us automate boring tasks, and what could be more boring than creating documentation for your Power BI semantic models? It’s such a tedious task that most people don’t bother; there ...

[Update September 2023: now that Power BI is part of Microsoft Fabric, the new features of Fabric make it much easier to solve this problem as described here] Power BI incremental refresh is a very ...

When you connect to a relational database like SQL Server in Power BI/Power Query/Excel Get & Transform you have two choices about how to get the data you need: You can choose a table from the ...

In the last two posts in this series I showed how removing columns from the tables used in a Power Query merge operation can improve refresh performance. In this post I’ll show you a different trick ...

For any Power BI person, Direct Lake mode is the killer feature of Fabric. Import mode report performance (or near enough) direct on data from the lake, with none of the waiting around for data to ...