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Georgia [21]
3 years ago
8

In the context of databases, the term data redundancy refers to: a. storing the same information in several records b. repeating

data on multiple reports using foreign keys c. which duplicate the values of primary keys d. all of these are possible examples of data redundancy
Computers and Technology
1 answer:
AleksandrR [38]3 years ago
5 0

Answer:

d. all of these are possible examples of data redundancy

Explanation:

Redundancy in database management systems (DBMS) is having the same data in more than one place.

If you look at the options, you will see all of them have situation that repeatation of the data.

a. storing the same information in several records

b. repeating data on multiple reports

c. using foreign keys which duplicate the values of primary keys

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Answer:

Table for Area codes are not missing;

See Attachment for area codes and major city I used

This program will be implemented using c++ programming language.

// Comments are used for explanatory purposes

// Program starts here

#include <iostream>

using namespace std;

int main( )

{

// Declare Variable area_code

int area_code;

// Prompt response from user

cout<<Enter your area code: ";

cin<<"area_code;

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switch (area_code) {

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case 404:

case 470:

case 678:

case 770:

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case 706:

case 762:

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case 478:

cout<<"Macon\n";

break;

//Major city Savannah has 1 area code: 912..

case 912:

cout<<"Savannah\n";

break;

default:

cout<<"Area code not recognized\n";

}

return 0;

}

// End of Program

The syntax used for the above program is; om

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