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sergejj [24]
3 years ago
14

What is the purpose of creating a primary key in a database

Computers and Technology
1 answer:
ss7ja [257]3 years ago
7 0

Answer:

Basically it creates a unique identifier for each row in your table and that can help you link your table to other tables using primary key as link

Explanation:

"Primary key allows you to create a unique identifier for each row in your table. It is important because it helps you link your table to other tables (relationships) using primary key as links."

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How many people are in Siver, on the game Valorant?
german

Answer:

probably like more than 20

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3 years ago
What might a programming prefer the top-down approach to programming design?
navik [9.2K]

Top down program design is an approach to program design that starts with the general concept and repeatedly breaks it down into its component parts. In other words, it starts with the abstract and continually subdivides it until it reaches the specific. Consider creating the prime factorization of a number like 1540. The steps involved might look like:

1540

2 x 770

2 x 2 x 385

2 x 2 x 5 x 77

2 x 2 x 5 x 7 x 11

Top down program design works the same way. We start with the overall objective and wind up with a series of steps needed to accomplish it.

3 0
3 years ago
I need a free flashdrive can anyone tell me any website links so i can get one for free????​
olga55 [171]

Answer:

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Explanation:

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4 0
3 years ago
File-sharing programs such as Napster, Kazaa, and iMesh make it possible for individuals to exchange music files over the Intern
Mashutka [201]

Answer:

Option A) Demand for CDs has decreased, causing equilibrium price and quantity to decrease.

is the correct answer.

Explanation:

  • File-sharing is a common practice nowadays. It helps us by providing access to different files (audio , video, images, documents) to others in a faster way.
  • A wide range of files are shared daily by using different means of file-sharing including computer networks and peer-to-peer networking.
  • Formerly, the data was shared using CDs but now this system has been replaced with the advent of internet.
  • Usage of CDs is dropped drastically and hence their demand is decreased.
  • So now the prices of CDs are not in equilibrium and their quantity is also decreased.

i hope it will help you!

3 0
3 years ago
Write a method called min that takes three integers as parameters and returns the smallest of the three values, such that a call
Debora [2.8K]

Answer:

public class Main

{

public static void main(String[] args) {

 System.out.println(min(3, -2, 7));

}

public static int min(int n1, int n2, int n3){

    int smallest = Math.min(Math.min(n1, n2), n3);

    return smallest;

}

}

Explanation:

*The code is in Java.

Create a method named min that takes three parameters, n1, n2, and n3

Inside the method:

Call the method Math.min() to find the smallest among n1 and n2. Then, pass the result of this method to Math.min() again with n3 to find the min among three of them and return it. Note that Math.min() returns the smallest number among two parameters.

In the main:

Call the method with parameters given in the example and print the result

7 0
3 years ago
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