Tech Blog

Many to Many Relationship in EF Core

By: Chris Dunn on Tue May 21, 2019 (5 min read)

A many-to-many relationship is one where you have two entities and entity x can have one or more of entity y, and entity y can have one or more of entity x.  Examples of this relationship are Products <-> Orders, BlogPosts <-> Tags, Albums <-> Artists, and in this post Courses <-> Students. In our example let's pretend we're writing course scheduling software for a University.  In that scenario, we might have two models for our Entities, Course and Student declared as fol ...