« previous next »

Author Question: Which relation is created with the primary key associated with the relationship or associative ... (Read 107 times)

luminitza

  • Hero Member
  • *****
  • Posts: 555
on: Jul 7, 2018
Which relation is created with the primary key associated with the relationship or associative entity, plus any non-key attributes of the relationship or associative entity and the primary keys of the related entities (as foreign key attributes)?
 
  A) Associative entity
  B) Associative entity with its own key
  C) Associative entity with additional key
  D) Binary 1:N relationship

Question 2

The ________ rule specifies that an entity instance of the super type does not have to belong to any subtype.
 
  A) Total specialization
  B) Partial specialization
  C) Overlap
  D) Disjoint
Modern Systems Analysis and Design ¦ Valacich, George ¦ 8th Edition
Buy Test-Bank


Ahnyah

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jul 7, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Relationship between winter rainfall and chuckwalla, Sauromalus, size Relationship between winter rainfall and chuckwalla, Sauromalus, size
Primary factors affecting blood pressure Primary factors affecting blood pressure
Primary steps in fibrinolysis Primary steps in fibrinolysis
Dose–response relationship. Dose–response relationship.
Human of the planet's net primary production and appropriation of NPP Human of the planet's net primary production and appropriation of NPP
The urinary system: Relationship of the kidneys to the vertebrae The urinary system: Relationship of the kidneys to the vertebrae
Video: Requirements for nervous signals

For a complete list of videos, visit our video library