When Must A Many-to-many Relationship Be Modelled As An Associative Entity?
When Must A Many-to-many Relationship Be Modelled As An Associative Entity? 2 Answers. Associative entities are used when you need a relationship to be involved in a relationship. For a normal many-to-many relationship between Student and Course , we would use just a diamond. However, if we want to associate Enrollment with Teacher , we