« previous next »

Author Question: An entity that associates the instances of one or more entity types and contains attributes specific ... (Read 159 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?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Different types of fog found throughout the United States Different types of fog found throughout the United States
Specific amino acid–nucleotide contacts for cI and Cro repressors Specific amino acid–nucleotide contacts for cI and Cro repressors
Lipoproteins The various types of lipoproteins and their composition Lipoproteins The various types of lipoproteins and their composition
The Many Types of Vegetarians The Many Types of Vegetarians
Results of mixing blood of the same or differing ABO blood types Results of mixing blood of the same or differing ABO blood types
Types of Synapses Types of Synapses
Video: Contraction and Relaxation Animation

For a complete list of videos, visit our video library