When data are normalized, attributes in the table depend only on the secondary key?

1 answer:

3 0

False
They depend only on the secondary key and not the primary key. Normalization analyzes and reduces a relational database to its streamlined form for min redundancy, and data integrity. A primary key uniquely identifies all table records. They typically appear as columns in a relational DB.

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Write the method makeNames that creates and returns a String array of new names based on the method’s two parameter arrays, arra

Gwar [14]

Answer:

import java.util.Arrays;
public class Main {
public static void main(String[] args) {
String [] first = {"David", "Mike", "Katie", "Lucy"};
String [] middle = {"A", "B", "C", "D"};
String [] names = makeNames(first, middle);
System.out.println(Arrays.toString(names));
}
public static String [] makeNames(String [] array1, String [] array2){
if(array1.length == 0){
return array1;
}
if(array2.length == 0){
return array2;
}
String [] newNames = new String[array1.length];
for(int i=0; i < array1.length; i++){
newNames[i] = array1[i] + " " + array2[i];
}
return newNames;
}
}

Explanation:

The solution code is written in Java.

Firstly, create the makeNames method by following the method signature as required by the question (Line 12). Check if any one the input string array is with size 0, return the another string array (Line 14 - 20). Else, create a string array, newNames (Line 22). Use a for loop to repeatedly concatenate the string from array1 with a single space " " and followed with the string from array2 and set it as item of the newNames array (Line 24-26). Lastly, return the newNames array (Line 28).

In the main program create two string array, first and middle, and pass the two arrays to the makeNames methods as arguments (Line 5-6). The returned array is assigned to names array (Line 7). Display the names array to terminal (Line 9) and we shall get the sample output: [David A, Mike B, Katie C, Lucy D]

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List the general steps that are used to configure a soho router and set up the network

marusya05 [52]

Configure the Internet connection.

Configure the wireless router.

Enable NAT.

Configure DHCP

Secure the SOHO network.

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Answer:

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Explanation:

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So, If an administrator needs to set up an authentication server for users connecting to a network through a VPN, he should establsih the RADIUS based Server.

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4 years ago

What are the benefits of a relationship in RDBMS <br>

natali 33 [55]

Answer:

To sum up all the advantages of using the relational database over any other type of database, a relational database helps in maintaining the data integrity, data accuracy, reduces data redundancy to minimum or zero, data scalability, data flexibility and facilitates makes it easy to implement security methods.

Explanation:

I hope it helps you..

Just correct me if I'm wrong..

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Which system provides an easier way for people to communicate with a computer than a graphical user interface (GUI)

Marta_Voda [28]

Answer: natural Language Processing

Explanation:

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