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
lubasha [3.4K]
3 years ago
8

What name is used to denote a common field that exists between two tables, but is also the primary key for one of the tables??"

Computers and Technology
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

Answer:

b. foreign key

Explanation:

In the database world, a foreign key is a field on one table and a primary key for another table. The purpose of a foreign key is to provide linkages between two or more tables. Given two tables A and B, and making A the point of reference, a primary key is a field that is unique in A while a foreign key is unique in B.

On another hand, a composite primary key is a combination of two or more fields/columns on database table that can be used to uniquely identify each row in the table.

In the database lingua, what we have is a unique key not a distinct key, though the two words are similar in meaning.

A duplicate key is used when an information may be repeatedly entered on a table.

So the correct option is a foreign key.

You might be interested in
A look to different section of the same page is known as_____.
11Alexandr11 [23.1K]

Answer:

hatdoggggggggg

Explanation:

sunoggggggg

6 0
3 years ago
How many bits would be needed to count all of the students in class today?There are 25 in class
monitta

Answer:

50?

Explanation:

8 0
3 years ago
Read 2 more answers
A company organizes all of its client database in order of the amount of money that the account is worth. When a new account is
svet-max [94.6K]

Answer:

The addition and count algorithm

Explanation:

3 0
2 years ago
Write a function that asks a user for his/her name and movie
Alex777 [14]

Answer:

The answer to this question is given below in the explanation section.

Explanation:

                     

The code is written in C++

/******************************************************************************

                             Online C++ Compiler.

              Code, Compile, Run and Debug C++ program online.

Write your code in this editor and press "Run" button to compile and execute it.

*******************************************************************************/

#include <iostream>

#include <string>  

using namespace std;

void display()

   {

       string yourName;

       string watchedMovie;

       cout<<"What is your name?  ";

       cin>>yourName;

       cout<<"Which movie have you seen?  ";

       cin>>watchedMovie;

       cout<<"Today, I have learned that  " <<name<<" watched "<<watchedMovie<<" movie";

   }

int main()

{    

   

   display();

   return 0;

}

 

7 0
3 years ago
Variablesallow us to manipulate data through the ___________.
gladu [14]

Answer:

Reference

Explanation:

Variables provide reference to the stored data value.

For example:

int i = 0;

Here i is a variable of type int with an initial value of 0. i is a reference to this stored value 0. Now if I want to update the data, I can do so using this reference.

i = 1;

Now the reference is used to manipulate the stored data and change it to 1. In a similar manner all updates to the value can be done using the variable reference.

8 0
3 years ago
Other questions:
  • Tower defense is included under which genre of game
    15·2 answers
  • Which column and row references are updated when you copy the formula: =F$5+12? Value 12 Column F Column F and row 5 Row 5
    8·1 answer
  • By which method is heat transferred through a metal <br> spoon?
    9·2 answers
  • Which method deletes a footer from a document?
    13·2 answers
  • In Windows Vista, the Run command can be found in which application?
    6·1 answer
  • rray testGrades contains NUM_VALS test scores. Write a for loop that sets sumExtra to the total extra credit received. Full cred
    5·1 answer
  • How to write a function that counts the letters in a string in C?
    13·1 answer
  • Which of the following is NOT a safe skill you can use to reduce your risk
    11·2 answers
  • A brick has a weight of 23N. The brick is flat and smooth on the side in contact with the floor having measurements ( height= 5c
    13·1 answer
  • A common hardware component found in electronic devices including desktop computers, laptops, tablets and smartphones. The amoun
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!