1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sladkih [1.3K]
3 years ago
13

In a relational database, a primary key is sometimes made up of multiple fields. What is this known as?

Computers and Technology
1 answer:
wlad13 [49]3 years ago
5 0

Answer:

Foreign key is the correct answer for the above question.

Explanation:

  • A foreign key is a key that is used to extract the information of a foreign table with the help of primary key value. When there is a normalized table then it needs to split on two or more tables to overcome the problem of normalization.
  • So is there is a two table then the primary key is used for the first table and the combination of the primary key and foreign key is used to identify the record of the foreign table. The foreign key is made up of multiple fields because there is no single field in the foreign which can not be null for any instance of the primary table. It happens when there is data for the primary table but there is no record for the foreign table.
  • The above question wants to ask about the term which is made up of multiple fields which is a foreign key which is described as above. Hence Foreign key is the correct answer for the above question.
You might be interested in
It was field day for the upper grades at Rock Creek School,
Mariulka [41]

Answer:

its c

Explanation:

8 0
3 years ago
What is the other name for repetitive strain injury
Ostrovityanka [42]

Carpel Tunnel syndrome, is what it is called in the USA


Hope it helped!

4 0
3 years ago
Read 2 more answers
Write a method that takes two circles, and returns the sum of the areas of the circles.
11111nata11111 [884]

Answer:

public static double areaSum(Circle c1, Circle c2){

 double c1Radius = c1.getRadius();

 double c2Radius = c2.getRadius();

 return Math.PI * (Math.pow(c1Radius, 2) + Math.pow(c2Radius, 2));

public static void main(String[] args){

 Circle c1 = new Circle(6.0);

 Circle c2 = new Circle(8.0);

  areaSum(c1,c2);

 }

Explanation:

7 0
2 years ago
This is an example of ______________ of variables:
Sedbober [7]

Answer:

Encapsulation is an example of variables

6 0
3 years ago
Define the computer with its workintg principple
GenaCL600 [577]

Explanation:

Computer is an electronic device that is designed to work with information.

WORKING PRINCIPLE OF COMPUTER

a.It accepts data and instructions by way of input,

b.It stores data,

c.It can process data as required by the user,

d.It gives result in the form of output,

e.It controls all operations inside a computer.

I hope it will help you

5 0
2 years ago
Other questions:
  • I plugged my phone up into a charger, the charger sparked and i unplugged my phone and now it wont charge at all, does anyone kn
    13·1 answer
  • Cryptolocker is an example of what type of malware?
    11·1 answer
  • Tiffany is an instructor at a college that is run on student tuition and not state taxes. Which statement best describes her emp
    6·2 answers
  • The RESET circuit used on the four 3-Bit Counters analyzed in this activity reset the counts to zero (000). It makes sense for t
    14·1 answer
  • Select below the Active Directory server role that provides the functions of Active Directory without the requirements of forest
    14·1 answer
  • This is a program that calculates information about orders of shirts and pants. All orders have a quantity and a color. Write a
    7·1 answer
  • Robyn needs to ensure that a command she frequently uses is added to the Quick Access toolbar. This command is not found in the
    9·1 answer
  • Why is 0.3333333333333333 the output of print(1/6 + 1/6) in python?
    8·1 answer
  • On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance
    15·1 answer
  • Assume that the Vehicle class contains a virtual method named CalculateMaxSpeed(). Assume that both the MotorVehicle and Automob
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!