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 ...

Did you know you can add the same physical table in OneLake multiple times to the same Direct Lake semantic model? Let’s say you have two tables in a Fabric Lakehouse. One is a fact table called Sales ...

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 ...

If you’ve heard about the new Direct Lake mode for Power BI datasets in Fabric you’ll know that it gives you the query performance of Import mode (well, almost) without the need to actually import any ...

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 ...

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 ...

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 ...

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 ...

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 ...

[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 ...

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 ...

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 ...