Different options to model many to many relationships in Power BI and Tabular
There are two options to model many-to-many relationships using Tabular and Power BI: you can use either a regular bidirectional filter relationship, or a limited unidirectional relationship. In this video, we compare the performance of both options.
Article and download: https://www.sqlbi.com/articles/different-options-to-model-many-to-many-relationships-in-power-bi-and-tabular/?aff=yt
How to learn DAX: https://www.sqlbi.com/guides/dax/?aff=yt
The definitive guide to DAX: https://www.sqlbi.com/books/the-definitive-guide-to-dax-2nd-edition/?aff=yt