@zaasmi
Pace Carol Tomlinson, it’s not clear to me that these items make sense to kids. I mean, when’s the last time you heard a student talk that way about a teacher or a class?

Please share idea solution

Re: CS614 Assignment 2 Solution and Discussion

Assignment No.  2

Semester: Spring 2020
CS614 – Data Warehousing
Total Marks: 15

Due Date:
June 17, 2020

Objectives:
After completing this assignment, the students will be able to:
• De-Normalize the given table using horizontal splitting technique
• Calculate the Total space used with normalization.
• Calculate the Total space used after de-normalization.

Instructions
Please read the following instructions carefully before submitting assignment:
It should be clear that your assignment will not get any credit if:

• Assignment is submitted after due date.
• Submitted assignment does not open or file is corrupt.
• Assignment is copied (From internet/ to from students).
• Assignment is submitted other than word format (.doc, .docx).

Assignment

Question No. 1

Consider the following table having the information of students of a university:

You are required to completely de-normalize the above table using “horizontal splitting” on the basis of Degree Program.

Question No. 2
Consider the following normalized tables for a telecommunication company showing the daily call record details of customers:

…
… …

… … … … …

Due to certain performance factors company wants to de-normalize the tables using pre-joining technique.

Table Information is given below:

• Assume 1:4 record count ratio between customer Info (master) and Call record detail (detail).
• Assume 15 million customers.
• Assume 10 byte Customer_ID.
• Assume 50 byte header for customer Info (master) and 80 byte header for Call record detail (detail) tables.
You are required to perform the following tasks:

• Calculate the Total space in GBs used with normalization.
• Calculate the Total space in GBs used after de-normalization.

Deadline:
Your assignment must be uploaded on VULMS on or before June 17, 2020. While June 18, 2020 will be a bonus day for assignment submission. After the bonus day, no assignment would be entertained via email.

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