Computers and Technology, 03.03.2020 23:48 diawia
A STUDENT can take many COURSES and a COURSE can have more than one STUDENT enrolled in the course. In this case, both the "student_id" and "course_id" primary keys become foreign keys and primary keys in a new entity called COURSE-STUDENT. What is the main reason for creating a new entity?
a. To reinforce data accuracy
b. To preserve data completeness
c. To eliminate possible data redundancy
d. To achieve data consistency
Answers: 3
Computers and Technology, 23.06.2019 02:00
Consider the following function main: int main() { int alpha[20]; int beta[20]; int matrix[10][4]; . . } a. write the definition of the function inputarray that prompts the user to input 20 numbers and stores the numbers into alpha. b. write the definition of the function doublearray that initializes the elements of beta to two times the corresponding elements in alpha. make sure that you prevent the function from modifying the elements of alpha. c. write the definition of the function copyalphabeta that stores alpha into the first five rows of matrix and beta into the last five rows of matrix. make sure that you prevent the function from modifying the elements of alpha and beta. d. write the definition of the function printarray that prints any onedimensional array of type int. print 15 elements per line. e. write a c11 program that tests the function main and the functions discussed in parts a through d. (add additional functions, such as printing a two-dimensional array, as needed.)
Answers: 3
Computers and Technology, 23.06.2019 02:00
For a typical middle-income family, what is the estimated cost of raising a child to the age of 18? $145,500 $245,340 $304,340 $455,500
Answers: 1
Computers and Technology, 23.06.2019 07:00
Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.
Answers: 3
Computers and Technology, 23.06.2019 07:30
What part of the interface displays the external references contained in a selected cell? the status bar the review tab the scroll bar the formula bar
Answers: 1
A STUDENT can take many COURSES and a COURSE can have more than one STUDENT enrolled in the course....
Mathematics, 08.02.2021 16:20
Mathematics, 08.02.2021 16:20
English, 08.02.2021 16:20
Mathematics, 08.02.2021 16:20
Computers and Technology, 08.02.2021 16:20
Mathematics, 08.02.2021 16:20