In a Many-to-Many relationship, which does a Junction Entity use?

In a Many-to-Many relationship, the Junction Entity serves as an intermediary to connect two entities. It utilizes both an identifier and references to establish these connections effectively.

The identifier in the Junction Entity typically serves as a unique key for establishing records within that entity, allowing for the identification of each record distinctly. This is crucial because it ensures that each link between the two related entities can be accurately tracked and managed.

On the other hand, the references are foreign keys that link back to the primary keys of the two entities involved in the relationship. This enables the Junction Entity to establish multiple connections between any given instance of the first entity and any instance of the second entity.

This structure is fundamental in database design as it facilitates the representation of complex relationships without redundancy, while still retaining the ability to query or manipulate these relationships effectively. Therefore, the correct option emphasizes the importance of combining an identifier with references to other entities in establishing a Many-to-Many relationship properly.