CSE :: Database System 2 - CS
- An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.
- A ternary relationship is so called because in contains two entities and one association between them.
- A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance.
- The degree of a relationship refers to the number of entity classes in the relationship.
- When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.
Whatsapp
Facebook
