When you use the UI to import files from SharePoint, you’ll end up with the Sharepoint.Files function. This function can become fairly or super slow when you use it on (…) Read more
Posts in Category ‘Power BI’
Convert DateTime to ISO 8601 date and time strings in Power Query
Often, when querying APIs it is required to enter date and time filters in ISO 8601 format . Today I show a quick way to convert DateTime to ISO 8601 string, (…) Read more
Retrieve header fields like response status from Web.Contents in Power BI and Power Query
Many Power Query function not only return their values as advertised in their function documentation, but on top of that a metadata record. This record is like tag that holds (…) Read more
Transform a query into a function in Power Query and Power BI
In my previous blogpost I’ve described a method how to extract a substring that follows a certain pattern from a string. In this post I show how to transform a (…) Read more
Extract pattern string and numbers from text using List.Accumulate in Power Query
A typical task when cleaning data is to extract substrings from string that follow a certain pattern. In this post I’m going to describe a method that uses the List.Accumulate (…) Read more
Performance tip to speed up slow pivot operations in Power Query and Power BI
Pivot operations in are a very handy feature in Power Query but they can slow down refresh performance. So with some bittersweet pleasure I can tell that I found a (…) Read more