One of the most powerful features of M is that you can write custom functions to re-use part of your code. Custom functions can be single or multiple liner, they will be written in Lambda style syntax. In this post you will learn how to write functions and invoke them in M. Custom functions and Read more about Writing Custom Functions in Power Query M[…]

Yesterday I’ve found a very awesome feature in Power Query (Thanks to Matt Masson). The feature is: you can see list of all functions in the Power Query with enumerations and option types with a keyword. I’m personally coming from a developer background, so that option for me looks like the Object Explorer in Visual Read more about How to Get List of All Functions and Invoke Them in Power Query[…]

In previous post you’ve learned about Formula language of the Power Query known as "M". you’ve learned that M is a functional language that apply data transformations through script. In examples of previous post you’ve learned some of table functions such as Table.AddColumn, Table.Sort, Table.Join, and Table.PrefixColumns. In this post we will discover more table Read more about Power Query Formula Language M : Table Functions Part 1[…]

In previous post, I described what is Power Query, and how we can use that for self service ETL. You’ve how to work with Power Query menus and connect to different data sources, and apply multiple transformations on the data. In this post I’ll go one step closer to the core of Power Query Formula Read more about Power Query Formula Language: M[…]

Power BI is the new self-service BI tools introduced by Microsoft. Power BI comes as part of Office 365 and Excel tools as some Add-Ins. Power Query is one of the main components of Power BI, and the functionality of Power Query is for self-service data transfer and ETL. In this blog post I’ll describe Read more about Tutorial Introduction to Power Query[…]