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

Author Question: If STUDENT and COURSE participate in a relationship, this is an example of a(n): A) unary ... (Read 50 times)

s.tung

  • Hero Member
  • *****
  • Posts: 577
on: Jul 7, 2018
If STUDENT and COURSE participate in a relationship, this is an example of a(n):
 
  A) unary relationship.
  B) coupled relationship.
  C) binary relationship.
  D) ternary relationship.
  E) extraordinary relationship.

Question 2

Having a level-1 diagram with no level-0 diagram is an example of a:
 
  A) violation of completeness.
  B) violation of consistency.
  C) balancing error.
  D) structuring violation.
  E) cohesion error.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

laurnthompson

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jul 7, 2018
Answer to Question 1

C
Explanation: C) A binary relationship is the most common relationship in ERD.
CL

Answer to Question 2

B
Explanation: B) A level-0 diagram is necessary to establish the foundation for creating a level-2 diagram.
CL


s.tung

  • Member
  • Posts: 577
Reply 2 on: Jul 7, 2018
Wow, this really help

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Gracias!

« previous next »
 

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?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

The relationship between free energy and electron movement along the electron transport chain The relationship between free energy and electron movement along the electron transport chain
The metabolic pathway that breaks down phenylalanine and its relationship to certain genetic disease The metabolic pathway that breaks down phenylalanine and its relationship to certain genetic disease
Relationship between psychosocial adaptation Relationship between psychosocial adaptation
Two lymphocytes that are reactive in a 19-year-old college student with infectious mononucleosis. ... Two lymphocytes that are reactive in a 19-year-old college student with infectious mononucleosis. ...
Relationship between inorganic and organic nitrogen metabolism Relationship between inorganic and organic nitrogen metabolism
Most elderly enjoy maintaining relationship with their grandkids Most elderly enjoy maintaining relationship with their grandkids
Video: Olfaction. or the sense of smell

For a complete list of videos, visit our video library