Database Design and Development Assessment Help

 

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Assignment Details:

• Words: 5000

 

CASE STUDY:

 

Question 1      

 

Consider the following set of requirements for a UNIVERSITY database that is used to keep track of student’s transcripts.

 

The university keeps track of each student’s name, student number, Social Security number, current address and phone number, permanent address and phone number, birth date, 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 Code of the student’s permanent address and to the students the last name. Both Social Security number and student number have unique values for each student.

 

Each department is described by a name, department code, office number, office phone number, and college. Both name and code have unique values for each department.

 

Each course has a course name, description, course number, number of semester hours, level, and offering department. The value of the course number is unique for each course.

 

Each section has an instructor, semester, year, course, and section number. The section number distinguishes 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.

 

A grade report has a student, section, letter grade, and numeric grade (0, 1, 2, 3, or 4).

 

Create an ER Diagram, listing all cardinality constraints and assumptions.

 

Question 2

 

Apply the normalization rules to the following Form, which show the data to be recorded in a database. All intermediate steps (UNF, INF, 2NF, and 3NF) should be shown in detail. State any assumptions that you make.

 

 

 

Please complete the following FOUR (4) parts:

 

i) Based on Figure 2, write down the unnormalized form.

 

ii) Identify the repeating group of attributes and transform part (i) into tables that are in 1st Normal form. (Explain the rationale for your decision).

 

iii) Identify any partial dependencies in part (ii) and transform into tables that are in 2nd Normal Form. (Explain the rationale for your decision).

 

iv) Identify any transitive dependencies in part (iii) and transform into tables that are in 3rd Normal Form. (Explain the rationale for your decision).

 

Question 3

 

The physical database can be created using DDL (Data Definition Language) and manipulated using DML (Data Manipulation Language), which enable users to access or manipulate data as organized by the appropriate model.

 

i) Using the CREATE TABLE in any dialect of SQL, show the corresponding SQL tables. Indicate the primary key, foreign keys, column names, constraints etc.

 

ii) Insert (at least) 10 sample rows for each identified table.

 

Student must test their database using at least the following:

 

• Restriction and Projection
• Aliases
• NULL value handling
• Concatenation
• Comparison Operator
• Logical Operator
• Sorting
• Function ()Group function & Single Row Function
• Joins
• Subqueries

 

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