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tigry1 [53]
3 years ago
14

​if a primary key combines two or more fields, then it is called a _____.

Computers and Technology
1 answer:
spin [16.1K]3 years ago
3 0

Answer:

Composite primary key, or simply, composite key

Explanation:

When multiple fields (columns of a table) are combined to form a primary key, the resulting key is called a composite key.

Hope this helps!

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Match each sentence to the type of imperialism it describes.
tankabanditka [31]

There is nothing to match?

5 0
3 years ago
​When preparing a representative sample from a list of 200 customers who complained about errors in their statements, a _____ co
svetoff [14.1K]

Answer: Stratified sample

Explanation:

For preparing samples of various data of companies and enterprises we need to apply probability distribution to different samples of data. Here in the question we are to apply a representative sample from a list of 200 customers who have complained about errors in their statement. So here we can apply stratified sampling where we can divide the 200 customers into separate groups. These sub groups of the customers are known as stratas. These stratas are selected based on certain characteristics which can be identified among the customers group. Here we can form subgroups based on the type of complain that has been lodged by the customer and selecting 5 customers from four zip codes. Then it would be easy to apply probability distribution to the sub groups to derive information from them.

This process would also enable a more easier and cheaper way of sampling the customer data.

7 0
4 years ago
Prompt the user to input an integer, a double, a character, and a string, storing each into separate variables. Then, output tho
katen-ka-za [31]

Answer:

import java.util.Scanner;

public class BasicInput {

   public static void main(String[] args) {

       //Create an object of the Scanner class

       Scanner scnr = new Scanner(System.in);

       

       //Define int and double variables

       int userInt;

       double userDouble;

       

       //Define char and string variables similarly

       char userChar;

       String userString;

       

       //Prompt the user to enter an integer

      System.out.println("Enter integer:");

       //Store the input in the integer variable

       userInt = scnr.nextInt();

       

       //Prompt the user to enter a double

        System.out.println("Enter double:");

       //Store the input in the double variable

      userDouble = scnr.nextDouble();

       

       //Prompt the user to enter a char

        System.out.println("Enter char:");

       //Store the input in the char variable

      userChar = scnr.next().charAt(0);

       

       //Prompt the user to enter a string

        System.out.println("Enter String:");

       //Store the input in the string variable

      userString = scnr.next();

       

       //Output the four values on a single line

       //separated by a space

       System.out.println(userInt + " " + userDouble + " " + userChar + " " + userString);

       

   }

   

}

Sample Output:

Enter integer:

>>12

Enter double:

>>23

Enter char:

>>s

Enter String:

>>asdasd

12 23.0 s asdasd

Explanation:

The code above has been written in Java. It contains comments explaining every part of the code. Please go through the comments.

5 0
3 years ago
To create a formula in______, you would first click in one of the cells​
Pavlova-9 [17]

Answer:excel

Explanation:

5 0
4 years ago
Read 2 more answers
While many instruments have been "electrified", there is no such thing for the drums.
coldgirl [10]
False, because they are called percussion group
4 0
3 years ago
Read 2 more answers
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