SQL Script

This 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

appropriate comments.

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 indexes.