An attribute that uniquely identifies an entity and consists of a composite attribute is called a(n):
An entity that associates the instances of one or more entity types and contains attributes specific to the relationships is called a(n):
The number of entity types that participate in a relationship is called the:
A relationship between the instances of a single entity type is called a(n) ________ relationship.
A student can attend five classes, each with a different professor. Each professor has 30 students. The relationship of students to professors is a ________ relationship.
A ________ specifies the number of instances of one entity that can be associated with each instance of another entity.
A simultaneous relationship among the instances of three entity types is called a(n) ________ relationship.
A relationship where the minimum and maximum cardinality are both one is a(n) ________ relationship.
A value that indicates the date or time of a data value is called a(n):
A mutually exclusive relationship is one in which:
an entity instance can participate in only one of several alternative relationships.