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

Author Question: When modeling a many-to-many unary relationship, the primary key of the relation representing the ... (Read 64 times)

student77

  • Hero Member
  • *****
  • Posts: 567
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
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
YES! Correct, THANKS for helping me on my review


brbarasa

  • Member
  • Posts: 308
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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