Author Question: The ________ is the structure that contains descriptions of objects such as tables and views created ... (Read 73 times)

jhjkgdfhk

  • Hero Member
  • *****
  • Posts: 569
The ________ is the structure that contains descriptions of objects such as tables and views created by users.
 
  A) SQL
  B) schema
  C) catalog
  D) master view

Question 2

An attribute of an entity that must have a value for each entity instance is a(n):
 
  A) optional attribute.
  B) composite attribute.
  C) required attribute.
  D) fuzzy attribute.


Eunice618

  • Sr. Member
  • ****
  • Posts: 350
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

For a complete list of videos, visit our video library