What is a many to many relationship in database?

A many-to-many relationship in a database is a type of association where multiple records in one table can relate to multiple records in another table. This is typically implemented using a junction table, which contains foreign keys referencing the primary keys of both related tables. For example, in a database of students and courses, a student can enroll in multiple courses, and each course can have multiple students. This relationship allows for flexible and complex data interactions.