Erd Identifying Relationship - Relationships between two entities may be classified as being either identifying or. Web entities, defined as tables that hold specific information (data) relationships, defined as the associations or interactions between. Web a relationship with a solid line (such as ) is called an identifying relationship, and the primary key of one. Web here's a good description:
Web here's a good description: Relationships between two entities may be classified as being either identifying or. Web entities, defined as tables that hold specific information (data) relationships, defined as the associations or interactions between. Web a relationship with a solid line (such as ) is called an identifying relationship, and the primary key of one.