Author Question: An attribute that must have a value for every entity (or relationship) instance is a(n): A) ... (Read 177 times)

Kthamas

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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.


hanadaa

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Answer to Question 1

B

Answer to Question 2

B



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