Author Question: Explain deletion anomalies and provide examples. What will be an ideal ... (Read 64 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
Explain deletion anomalies and provide examples.
 
  What will be an ideal response?

Question 2

A question that has a fixed answer or a fixed set of answers is called:
 
  A) An open-ended question
  B) A technical question
  C) A closed question
  D) A questionnaire



Eunice618

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

Deletion anomalies occur when deleting a record accidently causes other information to be lost. For example, if album and artist information was kept in the same table, removing a particular album might also remove any reference to the artist in the database.

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

For a complete list of videos, visit our video library