« previous next »

Author Question: To represent an IS-A relationship in a relational database design, the IS-A relationship must be ... (Read 91 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jul 7, 2018
To represent an IS-A relationship in a relational database design, the IS-A relationship must be converted into a HAS-A relationship.
 
  Indicate whether the statement is true or false

Question 2

A combination of two or more columns used to identify particular rows in a relation is a ________.
 
  A) record
  B) composite key
  C) foreign key
  D) surrogate key


wshriver

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 7, 2018
Answer to Question 1

FALSE

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

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?

The average adult has about 21 square feet of skin.

Did you know?

Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.

Four main models that describe the relationship between ecosystem function and biodiversity. Four main models that describe the relationship between ecosystem function and biodiversity.
Relationship Between BMI and % BF Relationship Between BMI and % BF
The Power and Control Wheels of Abusive Relationships When one person in a relationship repeatedly ... The Power and Control Wheels of Abusive Relationships When one person in a relationship repeatedly ...
DISTILLATION/ABSORPTION COLUMN DESIGN DISTILLATION/ABSORPTION COLUMN DESIGN
Relationship of the electrocardiogram to electrical conduction in the heart. Relationship of the electrocardiogram to electrical conduction in the heart.
The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ... The experimental design and results of Lester and Gorzalka (1988). On the third test, the female ...
Video: Secretin (inhibiting gastric acid secretion), Cholecystokinin (fat digestion) & Cholecystokinin

For a complete list of videos, visit our video library