Overhead Of Getting Relationship Columns In Power BI DirectQuery Mode
Many Power BI connectors for relational databases, such as the SQL Server connector, have an advanced option to control whether relationship columns are returned or not. By default this option is on....
View ArticlePower BI Paginated Reports That Connect To Web Services And Excel
By far the most exciting announcement for me this week was the new release of Power BI Report Builder that has Power Query built in, allowing you to connect to far more data sources in paginated...
View ArticleDisplaying Azure Maps In A Power BI Paginated Report
The built-in mapping functionality in Power BI paginated reports is fairly basic. However the integration of Power Query into Power BI paginated reports gives you an interesting new way of creating...
View ArticleNew Semi Join, Anti Join And Query Folding Functionality In Power Query
There are a couple of nice new features to do with table joins (or merges as they are known in M) and query folding in Power Query in the April release of Power BI Desktop that I want to highlight....
View ArticlePower BI/Data Books Roundup
It’s time for another short post on the free books that various authors have been kind enough to send me over the last few months. Full disclosure: these aren’t reviews as such, they’re more like free...
View ArticleModule.Versions Function In Power Query
The ever-vigilant folks on the internet have spotted that there’s a new M function in the latest versions of Power BI and Excel: Module.Versions. This function, at the time of writing, returns a...
View ArticleThe “DataFormat.Error: File contains corrupted data” Error In Power Query
When you’re using Excel workbooks as a data source in Power Query in either Excel or Power BI you may encounter the following error when trying to connect: DataFormat.Error: File contains corrupted...
View ArticleImprove Power Query Performance On CSV Files Containing Date Columns
A few weeks ago I replied to a question on reddit where someone was experiencing extremely slow performance when importing data from a CSV file using Power Query. The original poster worked out the...
View ArticleReading Delta Metadata In Power Query
There’s a new M function rolling out now that allows you to read metadata from Delta tables (at the time of writing it’s available in Dataflows Gen2 and will be available soon in Desktop). It builds...
View ArticleUsing Excel Copilot To Import Data With Power Query
Although it was announced in this blog post on the Microsoft 365 Insider blog recently, you might have missed the news that Excel Copilot can now generate Power Query queries. There are limitations...
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