Data & Analysis

Dynamically Generated Lines On A Map In Power BI Using DAX, WKT And The Icon Map Custom Visual

I don’t generally blog about data visualisation in Power BI because it’s not my strong point, and I don’t blog about maps and geospatial analysis because I know even less about that subject and there are people like David Eldersveld who cover it so well. I…

13 August 2020

Data & Analysis

Returning Annotations From OData Sources In Power BI/Power Query

The Power Query OData.Feed function has an option called IncludeAnnotations that allows you to return annotation values from an OData data source. It’s not obvious how to use it though – even if you use this option when connecting, you won’t see the annotation values by…

4 August 2020

Data & Analysis

Adding Tooltips To Column Headers In The Power Query Editor In Power BI And Excel

Here’s something that will excite all you M nerds out there! Did you know you can make tooltips appear when you hover over column headers in a table in the Power Query Editor in either Power BI Desktop or Excel? Source : Chris Webb's BI Blog…

31 July 2020

Data & Analysis

Creating a Time intelligence “External Tools” app for Power BI Desktop

With the release of the July 2020 version of Power BI desktop we can create tools that can interreact with the Power BI Desktop model directly using an external tool. With this interaction you can make changes to the model in a programmatic way. There are…

20 July 2020

Data & Analysis

Optimising The Performance Of Power Query Merges In Power BI, Part 3: Table.Join And SortMerge

When you merge data from two queries in the Power Query Editor the M code generated uses the Table.NestedJoin function. There is, however, another M function that can be used to merge data: Table.Join. The interesting thing about this function is that has a parameter that…

17 June 2020

Data & Analysis

Limit The Amount Of Data You Work With In Power BI Desktop Using Parameters And Deployment Pipelines

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 Desktop – and if you’re developing, you may…

3 June 2020

Data & Analysis

Monitoring Power Query Memory Usage With Query Diagnostics In Power BI

In the April release of Power BI Desktop the Power Query Query Diagnostics feature was enhanced so that you can now return performance counter data. As the blog post says: When you run performance counters, every half second Power Query will take a snapshot of resource…

28 May 2020