Computers and Technology, 11.03.2020 23:01, jasarochel
14.28. Consider the relation R, which has attributes that hold schedules of courses and sections at a university; R = {Course_no, Sec_no, Offering_dept, Credit_hours, Course_level, Instructor_ssn, Semester, Year, Days_hours, Room_no, No_of_students}. Suppose that the following functional dependencies hold on R: {Course_no} β {Offering_dept, Credit_hours, Course_level} {Course_no, Sec_no, Semester, Year} β {Days_hours, Room_no, No_of_students, Instructor_ssn} {Room_no, Days_hours, Semester, Year} β {Instructor_ssn, Course_no, Sec_no} Try to determine which sets of attributes form keys of R. How would you normalize this relation?
Answers: 2
Computers and Technology, 22.06.2019 15:30, gudon986732
When creating a budget, log fixed expenses before income. after income. after savings. at the top.
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Computers and Technology, 24.06.2019 01:30, jadaroyval
Write a program that asks the user to enter the name of an input file. if the file does not exist, the program should prompt the user to enter the file name again. if the user types quit in any uppercase/lowercase combinations, then the program should exit without any further output.
Answers: 3
Computers and Technology, 24.06.2019 16:30, Dajuan2x
Jenny needs to record the names of 30 students, write down the subjects they studied, and note their grades in each subject after the midsemester exams and the end-of-semester exams. she divides the midsemester and end-of-semester information into two separate worksheets, sheet 1 and sheet 2. how will she rename the two worksheets?
Answers: 2
14.28. Consider the relation R, which has attributes that hold schedules of courses and sections at...
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