Can you help me understand this Programming question?
his assignment requires you to take your extended design from Week 4
IP and add proper indexes, a function, and a stored procedure. Your
changes will provide functionality used by the teachers for screens such
as a grade book. Be sure any code is properly formatted and has
Part 1: Function
Write a user-defined function (UDF) that calculates a student's GPA
for a given time frame. Inputs are StudentId int, ClassStartDateStart
datetime, and ClassStartDateEnd datetime. The output should be the
student's GPA for all classes that were taken between
ClassStartDateStart and ClassStartDateEnd. Also, supply the script to
call this new function, passing it parameter values of your choice.
Part 2: Stored Procedure
Write the DDL script to make a stored procedure that returns data
needed to display a grade book screen for a professor. The only input
for the stored procedure is a ClassId. Outputs need to include student
names and grades for all assignments as well as a calculated overall
grade for the class for each student. Provide an example calling this
new stored procedure, passing it parameter values of your choice.
Include a screenshot of the output.
Part 3: Indexes
Provide a list of suggested indexes and the DDL script to create
them. Include an explanation of the purpose of indexes and how you made
your decision for the fields to include in your list of suggested
Copy and paste the work into your Key Assignment document and include
screen shots of each step, describe what you did for each step and paste
in the actual SQL text used to perform each step. Upload your document
to the Submitted Tasks.