create a table for the class entity in an ER diagram of a school system. Show the composite key in class table. Fill the table with 4 records. At what level in the database architecture we create tables ?
create a table for the class entity in an ER diagram of a school system. Show the composite key in class table. Fill the table with 4 records. At what level in the database architecture we create tables ?
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
create a table for the class entity in an ER diagram of a school system. Show the composite key in class table. Fill the table with 4 records. At what level in the
Expert Solution
Step 1
In the School system. there are many entities like
- Admin
- Teacher
- Student
- Subject
- Division
- Class
In class entity, the attributes that can be included are
- Id
- Name
- Division
The operation or method in class is
display class()
when the ID, name, and division of any student is given, this method will return the class.
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