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Fantom [35]
3 years ago
7

In a database, __________ is used to uniquely identify each record for retrieval or manipulation. answer an attribute or a field

a key field an entity a record
Computers and Technology
1 answer:
spayn [35]3 years ago
8 0
Hello <span>August1859 
</span>
Answer: In a database, a key field is used to uniquely identify each record for retrieval or manipulation.

Hope This Helps!
-Chris
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Ivenika [448]

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hope that helps :)

8 0
4 years ago
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A petrol (gas) station is to be set up for fully automated operation. A driver inputs his or her credit card into the pump, the
malfutka [58]

Answer:

Explanation:

Gas Filling Station has pumps. Pumps have credit card readers. Driver can able to swipe their cards, pumps have Fuel. Pumps card readers communicate with Credit Company. Driver interacts with pump for fuel and credit card.

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6 0
4 years ago
Iven an array temps of double s, containing temperature data, compute the average temperature. Store the average in a variable c
ale4655 [162]

Answer:

import java.util.Arrays;

import java.util.Scanner;

public class num1 {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Enter length of the array:");

       int len = in.nextInt();

       double [] temps = new double[len];

       double avgTem;

       int k =0;

       double total = 0;

       for( k=0; k<temps.length; k++){

           System.out.println("Enter values for the array");

           temps[k]=in.nextDouble();

       }

       System.out.println("The Arrays contains the following values");

       System.out.println(Arrays.toString(temps));

       // Computing the average of the values

       for(k=0; k<temps.length; k++){

           total = total+temps[k];

       }

       avgTem = total/(temps.length);

       System.out.println("The average Temperature is: "+avgTem);

   }

}

Explanation:

  • Using Java programming language
  • Import the Scanner class to receive user input
  • Prompt User for the length of the Array, receive and store in a variable len;
  • Declare a new double array of size len double [] temps = new double[len];
  • Using a for loop, continually prompt user to enter values into the array
  • Display the values of the array using Java's Arrays.toString method
  • Use another for loop to add up all the elements in the arraay and store in the variable called total
  • Outside the second for loop calculate the average avgTem = total/(temps.length);
  • Display the average temp.
6 0
3 years ago
What are the diffrent types of contract
igomit [66]
<span>Fixed Price Contracts, Cost Reimbursable Contracts, and <span>Time and Material Contracts are the three basic types. Not to mention </span></span>Sale contracts, Employment contracts, business contracts, and leases.
4 0
3 years ago
Sukant's professor asks her to take over his online class while he is away because she is an effective digital communicator.
Otrada [13]

Answer:

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6 0
2 years ago
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