This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Boyce-Codd Normal Form (BCNF) states which of the following? A) A non-key field may not determine ... (Read 98 times)

armygirl

  • Hero Member
  • *****
  • Posts: 556
on: Jul 7, 2018
Boyce-Codd Normal Form (BCNF) states which of the following?
 
  A) A non-key field may not determine another non-key field.
  B) A part of the primary key may not determine a non-key field.
  C) A part of a non-key field may not determine the primary key field.
  D) The primary key may not determine a non-key field.

Question 2

Having a part of CustomerID primary key come from customer's email address, violates which
  of the following normal forms?
 
  A) 2NF B) 1NF C) 3NF D) BCNF


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ndhahbi

  • Sr. Member
  • ****
  • Posts: 390
Reply #1 on: Jul 7, 2018
Answer to Question 1

C

Answer to Question 2

C


armygirl

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 7, 2018
Thank you


ndhahbi

  • Sr. Member
  • ****
  • Posts: 390
Reply #3 on: Jul 7, 2018
No problemo


« previous next »
 

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

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?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Visual Field Defects Visual Field Defects
Median Age at First Marriage in the United States Median Age at First Marriage in the United States
Municipal Solid Waste (MSW) Generation in the United States Municipal Solid Waste (MSW) Generation in the United States
Population Projections of the United States Population Projections of the United States
A form that the customer should fill out if there is a driveablilty concern to help the service ... A form that the customer should fill out if there is a driveablilty concern to help the service ...
A cross section of muscle showing the molecular organization within the muscle fiber. In normal musc A cross section of muscle showing the molecular organization within the muscle fiber. In normal musc
Video: Medullary osmotic gradient - influencing factors

For a complete list of videos, visit our video library