« previous next »

Author Question: An entity that associates the instances of one or more entity types and contains attributes specific ... (Read 52 times)

laurencescou

  • Hero Member
  • *****
  • Posts: 593
on: Jul 7, 2018
An entity that associates the instances of one or more entity types and contains attributes specific to the relationships is called a(n):
 
  A) associative entity.
  B) connecting entity.
  C) intersectional entity.
  D) all of the above.

Question 2

The entity integrity rule states that:
 
  A) no primary key attribute can be null.
  B) referential integrity must be maintained across all entities.
  C) each entity must have a primary key.
  D) a primary key must have only one attribute.
Modern Database Management ¦ Hoffer, Venkataraman, Topi ¦ 13th Edition
Buy Test-Bank


polinasid

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 7, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

laurencescou

  • Hero Member
  • *****
  • Posts: 593
Reply #2 on: Jul 7, 2018
TY


polinasid

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 7, 2018
Happy to Help


« previous next »
 

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Probes can be used to detect specific macromolecules Probes can be used to detect specific macromolecules
Types of Neurons and Neuron Anatomy Types of Neurons and Neuron Anatomy
Types of Laboratory Tests Types of Laboratory Tests
Immunogenicity of Different Types of Antigens Immunogenicity of Different Types of Antigens
Types of Fossils Types of Fossils
Car/ Vehicle Types Car/ Vehicle Types
Video: Allergic Rhinitis

For a complete list of videos, visit our video library