This topic contains a solution. Click here to go to the answer

Author Question: In many-to-many relationships in a relational database design, ________. A) the key of the child ... (Read 72 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
In many-to-many relationships in a relational database design, ________.
 
  A) the key of the child is placed as a foreign key into the parent
  B) the key of the parent is placed as a foreign key into the child
  C) the keys of both tables are placed in a third table
  D) the keys of both entity tables are placed in each other

Question 2

Discriminators can be ________.
 
  A) attributes
  B) entities
  C) relationships
  D) subtypes



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Bison

  • Sr. Member
  • ****
  • Posts: 342
Answer to Question 1

C

Answer to Question 2

A




crobinson2013

  • Member
  • Posts: 535
Reply 2 on: Jul 7, 2018
Gracias!


kalskdjl1212

  • Member
  • Posts: 353
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

For a complete list of videos, visit our video library