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categoryقواعد البيانات وإدارة البيانات
schoolبكالوريوس
event_available2026-07-15
السؤال
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CPS 541 Fall 2019
10/14/2019
Dr. Ugur
2. Consider the following set of requirements for a UNIVERSITY database used to keep track of
students' transcripts. This is similar but not identical to the database shown in Chap. 1, Fig. 1.2:
(a) The university keeps track of each student's name, student number, social security number,
current address and phone, permanent address and phone, birthdate, sex, class (freshman,
sophomore,..., graduate), major department, minor department (if any), and degree program
(B.A., B.S.,..., Ph.D.). Some user applications need to refer to the city, state, and zip of the
student's permanent address, and to the student's last name. Both social security number and
student number have unique values for each student.
(b) Each department is described by a name, department code, office number, office phone, and
college. Both name and code have unique values for each department.
(c) Each course has a course name, description, course number, number of semester hours, level,
and offering department. The value of course number is unique for each course.
(d) Each section has an instructor, semester, year, course, and section number. The section
number distinguishes different sections of the same course that are taught during the same
semester/year; its values are 1, 2, 3, ..., up to the number of sections taught during each semester.
(e) A grade report has a student, section, letter grade, and numeric grade (0, 1, 2, 3,
4 for F, D, C, B, A, respectively).
Design an ER schema for this application, and draw an ER diagram for that schema.
Specify key attributes of each entity type and structural constraints on each relationship type.
Note any unspecified requirements, and make appropriate assumptions to make the specification
complete.
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