Relationships in Salesforce specify the connections between various records across various objects:
- Lookup Relationship: Two objects are able to reference one another.
- Master: A parent-child relationship in which one object directs the actions of another is known as a master-detail relationship.
- Many-to-Many Relationship: Junction objects are used to model complex relationships.
- External Lookup Relationship: Salesforce objects are linked to external system objects through an external lookup relationship.
- Self-Relationship: An object has a self-relationship with itself.