To keep track of students and courses, a new college uses the table structure shown below.Attribute NameStudentIDStudentNameCourselDCourseNameGradeCourse DateSample Value1John Smith2Programming Level 175%Jan 5th, 2014Show Transcribed TextSample Value2Sandy Law2Programming Level 161%Jan 5th, 2014Sample Value3Sue Rogers3Business81%Jan 7th, 2014a. Draw the dependency diagram for this table. (Draw proper diagram which is clear and correct).b. Using the dependency diagram you just drew, show the tables (in their third normal form) you would create to fix theproblems you encountered. Draw the dependency diagram for the fixed table.

A dependency diagram, in the context of database design and normalization, is a graphical…

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a. Draw the dependency diagram for this table. (Draw proper diagram which is clear and correct).

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.

Question

To keep track of students and courses, a new college uses the table structure shown below.
Attribute Name
StudentID
StudentName
CourselD
CourseName
Grade
Course Date
Sample Value
1
John Smith
2
Programming Level 1
75%
Jan 5th, 2014
Show Transcribed Text
Sample Value
2
Sandy Law
2
Programming Level 1
61%
Jan 5th, 2014
Sample Value
3
Sue Rogers
3
Business
81%
Jan 7th, 2014
a. Draw the dependency diagram for this table. (Draw proper diagram which is clear and correct).
b. Using the dependency diagram you just drew, show the tables (in their third normal form) you would create to fix the
problems you encountered. Draw the dependency diagram for the fixed table.

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