TMDL (Tabular Model Definition Language) is crucial for efficient Power BI development using code. With the new TMDL view in Power BI Desktop, you can use it as your canvas to quickly create and modify semantic model objects. Go beyond what is possible in the Power BI Desktop UI and generate and modify semantic objects that previously would have required a third-party tool. Imagine pulling in standardized reusable scripts that benefit you and your teammates.
We will start our stay by learning about TMDL and how it differs from other scripting languages. We will learn the syntax and common missteps. We will examine how the TMDL view ties in with the Power BI project and how to choose which to use and when.
We will look at the support for TMDL in other tools such as Tabular Editor and Visual Studio Code. One of the benefits of TMDL is that it is text code, which means you can employ your favorite editor to develop and then apply those changes. Since TMDL is just code, we will touch on source control and how we can utilize it to detect changes between models quickly.
Lastly, we will discuss common use cases and how to leverage TMDL to become more effective and in-demand Power BI Developers.