Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Calculating the number of days that have passed between your birthday and the current date requires the usage of an Oracle function, which you should make advantage of.
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- QUADRATIC PRIMES This question is adopted from Project Euler Question 27. (https://projecteuler.net/problem=27) The quadratic formula n^2 + n + 41 will produce 40 primes for consecutive integer values 0 <= n <= 39. However, when n = 40, this formula will not generate a prime number. Another interesting quadratic formula n^2 – 79n + 1601 produces 80 prime numbers for consecutive values 0 <= n <= 79. The Question: find a and b such that when -999 <= a <= 999 and -1000 <= b <= 1000, the quadratic form ?^2 + ? × ? + ? produces the maximum number of primes for consecutive values of n, starting with n = 0. Requirement: MUST BE WRITTEN IN C++ - Print the 40 primes generated by formula n 2 + n + 41 - Print the 80 primes generated by formula n 2 – 79n + 1601 - Write a function that takes in an integer and returns whether the given number is prime or not. - Output the value of a, b and how many consecutive values of n (count the starting zero!) can be generated. - Submit…arrow_forwardWhen is it reasonable to use union compatibility between two select statements that are made from the same table?arrow_forwardThis assignment is to use your knowledge of Chap 1-5 to generate the following amortization table in a file given user’s input of loan amount, annual interest rate, term or number of years, and additional principal the borrower is willing to pay per month. You’ll use the formula of the monthly Payment as follows: monthlyPayment = (loanAmount * annualInterest/12)/(1- 1/pow(1+annualInterest/12,numberOfYears*12)) Then, you can use the following formula to compute Principal, Interest and Balance for the ith month. Balance(0) = Loan Amount; Actual Payment = Monthly Payment + Additional Principal Interest(i) = Balance(i-1) * Annual Interest Rate/12; Principal(i) = Actual Payment – Interest(i) Balance(i) = Balance(i-1) – Principal(i) When additional principal is greater than 0, it means that the loan will be paid off earlier than the loan term. So, your amortization table should end when the balance becomes zero or negative. So, when the balance is less than the actual payment, the next…arrow_forward
- Pythonarrow_forwardHow can two select statements from the same table both meet union requirements?arrow_forwardpython def factorial(n):pass # replace this line with your lines of recursive codedef sum_recursively(n):pass # replace this line with your lines of recursive codedef sumlist_recursively(l):pass # replace this line with your lines of recursive codedef reverse_recursively(l):pass # replace this line with your lines of recursive code#EXTRA CREDITdef multiply_recursively(n, m):pass # replace this line with your lines of recursive codearrow_forward
- In the binary data below "1" is assigned to students who are business majors in a statistics class and "0" is for all other majors. 1 1 1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1 1 1 1 0 1 0 0 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 0 1 1 1 0 1 1 0 1 1 1 1 1 1 1 1 1 0 1 1 1 1 0 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 17 What proportion of students are business majors? a 0.894 b 0.868 c 0.843 d 0.818arrow_forwardCode should be in Python Prompt the user for a title for data. Output the title.Ex: Enter a title for the data: Number of Novels Authored You entered: Number of Novels Authored Prompt the user for the headers of two columns of a table. Output the column headers.Ex: Enter the column 1 header: Author name You entered: Author name Enter the column 2 header: Number of novels You entered: Number of novels Prompt the user for data points. Data points must be in this format: string, int. Store the information before the comma into a string variable and the information after the comma into an integer. The user will enter -1 when they have finished entering data points. Output the data points. Store the string components of the data points in a list of strings. Store the integer components of the data points in a list of integers.Ex: Enter a data point (-1 to stop input): Jane Austen, 6 Data string: Jane Austen Data integer: 6 Perform error checking for the data point entries. If any of the…arrow_forwardPYTHON PLEASE EXPLAIN STEP BY STEPS AND THE OUTPUT School_sum calls the class_sum function: def class_sum(num): return num * 3 def school_sum(m): return class_sum(m) + 3 print(school_sum(5)) print(school_sum(8)) print(school_sum(15)arrow_forward
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