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ella [17]
3 years ago
13

Making a change to the conceptual schema of a database but notaffecting the existing external schemas is an example of

Computers and Technology
1 answer:
zhuklara [117]3 years ago
3 0

Answer: logical data independence

Explanation:

Using logical data independence we are able to make change to the conceptual schema but it does not make changes to the external schema. The external schema refers to the hiding the details of the database from the user.

Logical data independence refers to the views by which we are able to see the data without getting the internal details of the database.

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A teacher wants a program to give extra points to students who fail a test. Write a Python program to do the following: (a) Ask
Lorico [155]

Answer:

Hi there! Please find the answer below.

Explanation:

The program below demonstrates how each of the requirements can be coded in a simple Python script. To copy the array, we can use the copy() method of the array. To calculate the diff, we can use a few different techniques, so I have implemented it using a loop over the arrays and just storing and displaying the difference in the 2 arrays.

new_string.py

def add_test_score(score):

 test_score.append(score);

contact_hash = {}

test_score = []

print("Enter 5 test scores: ");

for x in range(0, 5):

   input_string = input("Enter test score " + str(x + 1) + ": ")

   add_test_score(int(input_string));

print(test_score);

test_score_copy = test_score.copy();

for e in test_score_copy:

   if e < 60:

       test_score_copy[test_score_copy.index(e)] += 10;

diff = [];

for e in test_score:

   print(test_score[test_score.index(e)]);

   print(test_score_copy[test_score.index(e)]);

   if not test_score[test_score.index(e)] == test_score_copy[test_score.index(e)]:

       diff.append(e);

print(diff);

8 0
4 years ago
Fair use laws allow you to use other people’s copyrighted information in which of the following purposes? A: For profit Purposes
andrew-mc [135]
Fair use laws allow you to use other peoples copyrighted info for educational purposes
3 0
4 years ago
Read 2 more answers
To what extent does w. e. b. dubois's argument still apply to the contemporary prison system?
fenix001 [56]

W. E. B. DuBois's "The Souls of Black Folk" is an important work that continues to resonate today. In it, DuBois argues that the black experience in America is fundamentally different from that of whites, and that this difference is the result of racism. He further argues that the black community must develop its own institutions and culture in order to thrive.

DuBois's arguments are as relevant today as they were when he wrote them. The contemporary prison system is a clear example of how racism continues to impact the lives of black Americans. Black people are disproportionately incarcerated, and the conditions in many prisons are abysmal. The lack of access to education and opportunities for rehabilitation means that many black Americans are effectively condemned to a life of poverty and despair.

DuBois's work is a call to action for black Americans to create their own institutions and to fight for their rights. The contemporary prison system is a clear example of how much work still needs to be done.

Learn more on black Americans here:

brainly.com/question/25102754

#SPJ4

3 0
1 year ago
Create a class that acts as a doubly linked list node. it should contain all the required data fields, at least 1 constructor, a
Zielflug [23.3K]

it is in Microsoft access


8 0
4 years ago
Help!!! Photography class!! ASP
katovenus [111]

Answer:

D.

Explanation:

Typically represented by a capital A (or sometimes Av, short for Aperture Value) on the camera mode dial, aperture priority allows the photographer to dial in this specific exposure setting—the ƒ-stop—and asks the camera to calculate the correct corresponding shutter speed in the instant before the shutter is released.

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