In yet another entry in my series on what you should be doing in Power BI Copilot AI Instructions, in this post I want to ...

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 ...

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 ...

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 ...

[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 ...

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 ...

I’ve done it for a few other groups over the last six months but this is the latest and best version, I think. I’ve worked with several customers using DirectQuery mode since I joined the CAT team and ...

One of the factors that affects dataset refresh performance in Power BI is the number of objects that are refreshed in parallel. At the time of writing there is a default maximum of six objects that ...

If you’re working with large amounts of data in Power BI you may find that you have problems because: Your pbix file is very large You spend a long time waiting for refreshes to finish in Power BI ...

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 ...