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kotykmax [81]
2 years ago
14

The strongest normal form that R=AB is in is? a. not known since we don't know the set of functional dependencies b. 2nf c. 3nf

d. bcnf
Computers and Technology
1 answer:
Firlakuza [10]2 years ago
5 0

A correct option is option (a). The strongest normal form that R=AB is in is not known since we don't know the set of functional dependencies

What are functional dependencies?

An association between two attributes, often the PK and other non-key properties in a database, is known as a functional dependency (FD). If the value of attribute X (often the PK) impacts the value of attribute Y in a unique way for each valid instance of X, then attribute Y is functionally dependent on attribute X for any relation R.

How do you identify functional dependency?

  • When two different values of B are related to the same A, this is known as a "functional dependency" A->B.
  • A key must be distinct, therefore even if two tuples contain the same value for one or more attributes, the key values must differ.

Learn more about dependency: brainly.com/question/22276156

#SPJ4

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Sammy's Seashore Supplies rents beach equipment such as kayaks, canoes, beach chairs, and umbrellas to tourists. Write a program
murzikaleks [220]

Answer:

// here is code in java.

import java.util.*;

// class definition

class SammysRentalPrice

{

// main method of the class

public static void main(String[] args) {

    // scanner object to read input from user

    Scanner s=new Scanner(System.in);

      // ask user to enter year

       System.out.print("Enter the rented minutes:");

       // read minutes

      int min=s.nextInt();

      // find hpurs

      int hours=min/60;

      // rest  of minutes after the hours

      min=min%60;

      // total cost

      int tot_cost=(hours*40)+(min*1);

      // print hours,minute and total cost

      System.out.println("total hours is: "+hours);

      System.out.println("total minutes is: "+min);

      System.out.println("total cost is: "+tot_cost);

     

}

}

Explanation:

Read the rented minutes of an equipment from user with the help of scanner object. Calculate the hours and then minutes from the given minutes.Calculate the cost by multiply 40 with hours and minute with 1.Add both of them, this will be the total  cost.

Output:

Enter the rented minutes:140

total hours is: 2

total minutes is: 20

total cost is: 100

7 0
3 years ago
The software/system that helps make sure the retail firm doesn't have a stockout is?
dedylja [7]

The software/system that helps make sure the retail firm doesn't have a stockout is supply chain management software.

Supply chain management is a software that comprehends all the techniques and processes that convert the starting material into the finished or final product. The supply chain management software is cost-effective and time-saving.

Creating a strategy, raw materials, manufacturing, distribution, and returns are the five important ingredients of supply chain management software.

The software helps the retail firm in improving customer service by ensuring that there is a continuous flow of the starting material so that the production process does not stop indefinitely which results in good relationships with the supplier and customer.

The software also performs the functions of processing customer requirements, sourcing, and shipping management.

To know more about supply chain management, click here:

brainly.com/question/28282152

#SPJ4

7 0
1 year ago
A computer may keep freezing if it's software is up-to-date? <br> True <br> False
tester [92]

Answer:

false

Explanation:

6 0
4 years ago
Jack lost all the data he saved on his desktop because of a power outage while working on a presentation on which of these compu
Alchen [17]
The hard drive should have saved his data.
5 0
3 years ago
Read 2 more answers
import java.io\.\*; import java.nio.file\.\*; public class TestFileReader { public static void main(String[] args) { Path p = Pa
Charra [1.4K]

Answer:

The delimiter use is "::".

Explanation:

The Java inbuilt String.split( ) function is use to split a String into an array of String.

The split( ) takes delimiter as arguments/parameter which determines at which point the string is to be broken down into different part/token.

From the above code snippet;

Each line in the file a.txt that is not null is splitted using the statement below:

String[ ] v = line.split("::");

The line is splitted using "::" as delimiter and the resulting array is then assigned to the variable 'v'.

For instance, a line in the file could take the form:

John::Smith::Music

When it is splitted,

String lname = John;

because lname make reference to index 0 of the array.

String fname = Smith;

because fname make reference to index 1 of the array.

String dept = Music;

and dept make reference to index 2 of the array.

6 0
3 years ago
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