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Inessa [10]
4 years ago
14

The following SQL statement contains which type of subquery? SELECT title FROM books WHERE EXISTS (SELECT isbn FROM orderitems W

HERE books.isbn = orderitems.isbn); a. correlated b. inline view c. multiple-column d. uncorrelated
Computers and Technology
1 answer:
Rudiy274 years ago
4 0

Answer:

(a) Correlated.

Explanation:

Correlated subquery :These sub queries reference columns from outer table or uses values from outer query.These sub queries are processed atleast once for every row processed.So because of this reason correlated sub queries can be slow.Since the query in the question also uses value from the outer query so it is a correlated query.

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ludmilkaskok [199]

Answer:

print(“Coding is fun.”)

Explanation:

The proper format for a print statement is usually you have the print statement followed by the string in quotes in parentheses.

Hope this helped!

7 0
3 years ago
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Are storage devices input devices
Nonamiya [84]

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Exphfbdplanation:

8 0
3 years ago
A mobile device user has entered her user ID and password to access an online account. The user immediately receives a text mess
tensa zangetsu [6.8K]

Answer:

A. Multifactor authentication

Explanation:

Multifactor authentication is a security system process that requires a user to verify his or her identity by providing two categories of credentials.

A mobile device user has entered her user ID and password to access an online account, she immediately receives a text message with a unique PIN or One Time Password (OTP) that must be entered before she is granted access to the account. This is an example of a multifactor authentication security method.

8 0
3 years ago
Write a C console application that will be used to determine if rectangular packages can fit inside one of a set of spheres. You
MatroZZZ [7]

Answer:

#include <cmath>

#include <iostream>

using namespace std;

int getSphereSize(double length, double breadth, double height) {

   double diagonal = sqrt(length * length + breadth * breadth + height * height);

   if (diagonal <= 4)

       return 4;

   if (diagonal <= 6)

       return 6;

   if (diagonal <= 8)

       return 8;

   if (diagonal <= 10)

       return 10;

   if (diagonal <= 12)

       return 12;

   return 0;

}

int main() {

   double length, breadth, height;

   int sphereCounts[5] = {0};

   int sphereSize;

   while (true) {

       // Get dimensions of the box

       cout << "Enter the dimensions of the box:\n";

       cout << "Length: ";

       cin >> length;

       cout << "Breadth: ";

       cin >> breadth;

       cout << "Height: ";

       cin >> height;

       if (length <= 0 || breadth <= 0 || height <= 0)

           break;

       sphereSize = getSphereSize(length, breadth, height);

       if (sphereSize == 0)

           cout << "The box cannot fit in any of the spheres";

       else

           cout << "The box can fit in the " << sphereSize << "-inch sphere";

       // Increment the counter

       if (sphereSize == 4)

           sphereCounts[0]++;

       else if (sphereSize == 6)

           sphereCounts[1]++;

       else if (sphereSize == 8)

           sphereCounts[2]++;

       else if (sphereSize == 10)

           sphereCounts[3]++;

       else if (sphereSize == 12)

           sphereCounts[4]++;

       cout << "\n\n";

   }

   cout << "\nNumber of 4-inch spheres: " << sphereCounts[0];

   cout << "\nNumber of 6-inch spheres: " << sphereCounts[1];

   cout << "\nNumber of 8-inch spheres: " << sphereCounts[2];

   cout << "\nNumber of 10-inch spheres: " << sphereCounts[3];

   cout << "\nNumber of 12-inch spheres: " << sphereCounts[4];

   cout << endl;

   return 0;

}

Explanation:

The "cmath" library is included in the c++ program. The getSphereSize function is used to return the sphere size the rectangle dimension can fit into. It program continuously prompts the user for the length, breadth, and height of the rectangle and passes the values to the getSphereSize function in the while but breaks if any or all of the variable value is zero.

The sizes of the sphere objects in inches are collected in an array of five integer values of zeros and are incremented by one for every match with a rectangle.

7 0
3 years ago
Explain the term computer output​
fomenos

Answer:

Computer output simply put is any data generated by the computer or feedback gotten from the computer. Output can take many forms, but there are 2 major categories:

- Soft copy output e.g text viewed on a computer screen

- Hard copy output e.g printouts

Explanation:

6 0
3 years ago
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