After you publish changes to a Power BI semantic model it can take a few minutes, sometimes up to an hour, for updates to the AI Instructions to be applied. This means if you’re testing Power BI ...

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 almos… ...

One very common requirement when creating a Power BI report is the ability to apply a filter for the current day, week, month, quarter or year. There are several ways of implementing this: you coul… ...

A blog about Microsoft Fabric, Power BI, SQL Server Analysis Services (Multidimensional and Tabular), MDX, DAX, Power Pivot, Power Query and Excel for BI ...

Here’s the problem description. If you define a calculated measure in MDX, that calculation will take place after the real measure values have all aggregated. For example, consider a super-simple cube ...

The Web.Contents() function in M is the key to getting data from web pages and web services, and has a number of useful – but badly documented – options that make it easier to construct urls for yo… ...

Recently I had a request for help from someone who wanted to do the following in Power Query: take a piece of text and then, using a table, search for all of the occurrences of the words in one column ...

One of the most confusing, under-documented and widely-misunderstood features of Power BI and Power Query (or Excel “Get & Transform” or whatever you want to call it) are the data privacy settings. I ...

In my recent post on web services in Power Query I mentioned that while the Power Query Web.Contents() function generates a GET request by default, you can make it generate a POST request by specif… ...

For any Power BI person, Direct Lake mode is the killer feature of Fabric. Import mode report performance (or near enough) direct on data from the lake, with none of the waiting around for data to ...

One Power BI feature that almost passed me by (because it was released in August while I was on holiday) was the ability to create streaming datasets in the Power BI web app and push data to them via ...

My name is Chris Webb, and I work on the Fabric CAT team at Microsoft. I blog about Power BI, Power Query, SQL Server Analysis Services, Azure Analysis Services and Excel. View all posts by Chris Webb ...