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

Author Question: In many-to-many relationships in a relational database design, ________. A) the key of the child ... (Read 28 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
on: Jul 7, 2018
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
Reply #1 on: Jul 7, 2018
Answer to Question 1

C

Answer to Question 2

A


crobinson2013

  • Member
  • Posts: 535
Reply 2 on: Jul 7, 2018
Great answer, keep it coming :)

aruss1303

  • Member
  • Posts: 314
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Symbolic language may have helped reinforce exclusive sexual relationships within social groups in l Symbolic language may have helped reinforce exclusive sexual relationships within social groups in l
What “race” are these two Brazilians? Is the child’s “race” different from her mother’s ... What “race” are these two Brazilians? Is the child’s “race” different from her mother’s ...
A typical engine design that uses both pressure and splash lubrication. Oil travels under pressure ... A typical engine design that uses both pressure and splash lubrication. Oil travels under pressure ...
Relationships of DNA to mRNA to polypeptide chain Relationships of DNA to mRNA to polypeptide chain
Child Development: A Topical Approach Child Development: A Topical Approach
Modern house door design Modern house door design
Video: Protein catabolism - deamination

For a complete list of videos, visit our video library