Many of you have already heard about the basics of modeling in Power BI and what an ideal data model should look like—such as a beautiful star schema. However, reality is often different. You have to work with diverse data sources that aren’t always designed for efficient modeling.

In this session, I’ll share practical experiences with the types of data sources you’ll actually work with—whether it's a single large flat table without dimensions or multiple fact tables without primary keys. We’ll explore how to turn them into a functional and fast data model in Power BI.