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Question

From the ER schema diagram for a simplified UNIVERSITY database 



 

src="/qa/attachment/10753449/" alt="6.jpg" />


a. Extract the subset student-section-instructor and show the new diagram

b. the Hierarchical (tree) view with STUDENT as the root

c. the XML schema document with student as the root

6.jpg

Name
Students
DEPARTMENT
Instructors
Courses
1
S-D
D- 1
Major dept
D-C
Department
Name
Class
Name
Ssn
Name
N
Department
N
Rank
N
Ssn
STUDENT
COURSE
Number
INSTRUCTOR
Salary
Sections
M
Sections
completed
Grade
Sections taught
S-S
C-S
S-1
Students attended
Course
N
Instructors
N
SECTION
N
Number
Year
Qtr

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