« previous next »

Author Question: An attribute that must have a value for every entity (or relationship) instance is a(n): A) ... (Read 178 times)

Kthamas

  • Hero Member
  • *****
  • Posts: 546
on: Jul 7, 2018
An attribute that must have a value for every entity (or relationship) instance is a(n):
 
  A) composite attribute.
  B) required attribute.
  C) optional attribute.
  D) multivalued attribute.

Question 2

Languages, menus, and other facilities by which users interact with the database are collectively called a(n):
 
  A) client.
  B) user interface.
  C) icon.
  D) development environment.
Modern Database Management ¦ Hoffer, Venkataraman, Topi ¦ 13th Edition
Buy Test-Bank


hanadaa

  • Sr. Member
  • ****
  • Posts: 339
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?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Leaf structure and its relationship to the C4 cycle Leaf structure and its relationship to the C4 cycle
Relationship between winter rainfall and chuckwalla, Sauromalus, size Relationship between winter rainfall and chuckwalla, Sauromalus, size
The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine
IQ and Genetics The closer the genetic relationship, the higher the correlation in IQ. Based on: Br IQ and Genetics The closer the genetic relationship, the higher the correlation in IQ. Based on: Br
A close relationship between greenhouse gas emissions and a country’s gross domestic product A close relationship between greenhouse gas emissions and a country’s gross domestic product
Length-Tension Relationship Length-Tension Relationship
Video: Lower Limb Arteries Animation

For a complete list of videos, visit our video library