Power BI Copilot knows about the relationship between measures and tables, which means that it’s very good at knowing which ...

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

Gives the same result as without the AI Instructions: BUT – even though Copilot asked what “recently” meant, it still went ...

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… ...

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… ...

In the last two posts in this series I showed how removing columns from the tables used in a Power Query merge operation can improve refresh performance. In this post I’ll show you a different trick ...

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… ...

One of many cool things about Power Query is the way that it allows you to retrieve data from web services and load it into Excel. While this is a subject that lots of people (including me) have ...

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 ...

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 ...

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… ...