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Data Modeling with ER Model
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
parent
child
instance
subtype
Correct Answer:
child
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Data Modeling with ER Model
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?
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.
When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.
A ternary relationship is so called because in contains two entities and one association between them.
In a 1:N relationship, the parent is the entity on the one side of the relationship and the child is the entity on the N side of the relationship.
An entity is something that can be identified in the user's work environment; something that the users want to track.
An identifier typically uses more than one attribute.
Relationship classes are associations between entity classes.
Entity instances are associated by relationship classes.
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