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

Author Question: When modeling a many-to-many unary relationship, the primary key of the relation representing the ... (Read 62 times)

student77

  • Hero Member
  • *****
  • Posts: 567
on: Jul 7, 2018
When modeling a many-to-many unary relationship, the primary key of the relation representing the relationship is always singular.
 
  Indicate whether the statement is true or false

Question 2

Structure charts, logic models, and data models are the major deliverables associated with the object-oriented modeling approach.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tuate

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 7, 2018
Answer to Question 1

FALSE
Explanation: Unary relationships can have composite primary keys just like any other relations.
CL

Answer to Question 2

FALSE
Explanation: The deliverables from project activities using object-oriented modeling are data-flow and entity-relationship diagrams and repository descriptions.
CL


student77

  • Member
  • Posts: 567
Reply 2 on: Jul 7, 2018
:D TYSM

gcook

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Relationship between psychosocial adaptation Relationship between psychosocial adaptation
The Primary Visual Pathway The Primary Visual Pathway
Primary aging means changes in hair color and skin texture for almost everyone. Primary aging means changes in hair color and skin texture for almost everyone.
IQ and Genetics The closer the genetic relationship, the higher the correlation in IQ. Based on: Br IQ and Genetics The closer the genetic relationship, the higher the correlation in IQ. Based on: Br
Relationship Between Training Intensity and VO2max Improvement Relationship Between Training Intensity and VO2max Improvement
The relation between a raw EMG signal and its integrated version. The volunteer tensed her muscle ... The relation between a raw EMG signal and its integrated version. The volunteer tensed her muscle ...
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library