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3 years ago

When a primary key combines two or more fields, it is called a ____ key?

Computers and Technology

1 answer:

Tanya [424]3 years ago

6 0

<span>When a primary key combines two or more fields, it is called a ____ key
the answer is Constructed key</span>

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Which method adds 10 to the right end of the array?<br> myArray.<br> insert<br> (10)

vladimir1956 [14]

JavaScript has a set of mutator functions that allow you to modify the contents of an array without referencing the individual elements.To add to to myArray we us the push() method

<h3>Adding Elements to an Array</h3>

To add to to myArray we us the push() method

(10)

myArray.push(10)

There are two mutator functions for adding elements to an array: push() and unshift(). The push() function adds an element to the end of an array:

var nums = [1,2,3,4,5]; print(nums); // 1,2,3,4,5 nums.push(6);

print(nums); // 1,2,3,4,5,6

var nums = [1,2,3,4,5]; print(nums); // 1,2,3,4,5 nums[nums.length] = 6; print(nums); // 1,2,3,4,5,6

Learn more about arrays here:

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2 years ago

Write a method void Print(int LastNumber, int numbersPerLine) that receives two integers

marysya [2.9K]

Answer:

Code is in the attached screenshot.

Explanation:

Assumed it was written in Java based on your other question asked.

7 0

4 years ago

Which expression correctly determines that String s1 comes before String s2 in lexicographical order

Assoli18 [71]

Options :

A.) s1 < s2

B.) s1 <= s2

C.) s1.compareTo(s2) == −1

D.) s2.compareTo(s1) < 0

E.) s1.compareTo(s2) < 0

Answer: E.) s1.compareTo(s2) < 0

Explanation: Lexicographical ordering simply means the arrangement of strings based on the how the alphabets or letters of the strings appear. It could also be explained as the dictionary ordering principle of words based on the arrangement of the alphabets. In making lexicographical comparison between strings, the compareTo () method may be employed using the format below.

If first string = s1 ; second string = s2

To compare s1 with s2, the format is ;

s1.compareTo(s2) ;

If s1 comes first, that is, before s2, the method returns a negative value, that is a value less than 0 '< 0', which is the case in the question above.

If s2 comes first, that is, before s1, the method returns a positive value, that is a value greater than 0 '> 0'.

If both are s1 and s2 are the same, the output will be 0.

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3 years ago

with the aid of your own example explain how memory,registers and secondary storage all work together

AnnyKZ [126]

Memory, registers and secondary storage all work together so as to create or produce an ideal storage conditions.

<h3>How does memories works together?</h3>

The use of storage memory serves for different purposes. There is the primary storage and secondary storage that are known to work together so as to bring about a better ideal storage conditions.

An example is if a person save their work in Word, the file data is said to move the data or file from primary storage to a secondary storage device for long-term keeping.

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2 years ago

Data are made anonymous by Destroying all identifiers connected to the data. Requiring all members of the research team to sign

mestny [16]

Answer:

Destroying all identifiers connected to the data.

Explanation:

Identifiers are your virtual location when navigating, if you destroy your 'Virtual ID', nobody could identify you. Also, you could hide your identifiers, in this case, there's a small risk.

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3 years ago