Author Question: First normal form (4NF) states which of the following? A) In an all-key table, part of the key ... (Read 57 times)

melina_rosy

  • Hero Member
  • *****
  • Posts: 531
First normal form (4NF) states which of the following?
 
  A) In an all-key table, part of the key can determine multiple values of, at most, one other
  field.
  B) All fields must contain single values only.
  C) A non-key field may not determine a non-key field.
  D) Part of the primary key may not determine a non-key field.

Question 2

In an unsupervised data mining technique, analysts do not create a model or hypothesis before running the analysis.
 
  Indicate whether the statement is true or false


miss.ashley

  • Sr. Member
  • ****
  • Posts: 371
Answer to Question 1

A

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

For a complete list of videos, visit our video library