As I described here, Power BI can send SQL queries in parallel in DirectQuery mode and you can see from the Timeline column there is some parallelism happening here – the last two SQL queries ...

If you’re performance tuning a Power BI report the most important thing you need to measure – and the thing your users certainly care about most – is how long it takes for a report page to load. Yet ...

This is going to sound strange, but one of the things I like about tuning Power BI DirectQuery semantic models is that their generally-slower performance and the fact you can see the SQL queries that ...

If you’re performance tuning a Power BI report the most important thing you need to measure – and the thing your users certainly care about most – is how long it takes for a report page to load. Yet ...

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 ...

If you’re working with DirectQuery in Power BI then one of the most important properties you can set on your dataset is the “Maximum connections per data source ...

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 ...

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 ...

In the first two parts of this series (see here and here) I showed how Power BI/Power Query/Excel Get & Transform’s data privacy settings can influence whether query folding takes place or even ...

Do you have a a large dataset in Power BI Premium or Premium Per User? Do you have more than six tables that take a significant amount of time to refresh? If so, you may be able to speed up the ...

A few weeks ago I showed how XMLA Endpoints allow you to connect SQL Server Profiler to Power BI Premium. As well as looking at query execution times this also means you can see in more detail what ...