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CS614 Assignment No. 2 Solution and Discussion Due Date 08-12-2014

Assignment # 2 (GRADED)
Total marks = 20
Deadline Date: 08-12-2014

Please carefully read the following instructions before attempting the assignment.

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Important Note:

Assignment comprises of 20 Marks. Note that no assignment will be accepted after due date via email in any case (whether it is the case of load shedding or emergency electric failure or internet malfunctioning etc.). Hence, refrain from uploading assignment in the last hour of the deadline, and try to upload Solutions at least 02 days before the deadline to avoid inconvenience later on.

For any query please contact: CS614@vu.edu.pk

Question No. 1 [10]
You are given ERD as shown below. Perform appropriate de-normalization technique to any of the one-to-one and one-to-many relations.

Question No. 2 [10]
Consider the below given tables:
Student_ Info

Suppose we need to run the below given query more frequently. But the problem is that the given query links two tables which degrade performance. Perform the most appropriate de-normalization technique to enhance the performance so that we don’t need to perform join.

Select S.Roll_No, S.Name, A.Application_ID,A.Program,A. Application_date from Student_Info S, Application_Info A where A.Roll_No= S.Roll_No

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Replies to This Discussion

Please Discuss here about this assignment.Thanks

Our main purpose here discussion not just Solution

We are here with you hands in hands to facilitate your learning and do not appreciate the idea of copying or replicating solutions.

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Attachments:

Tariq

NORMALIZATION*********************

DE-NORMALIZATION*********************


Q---2

Perform the most appropriate de-normalization technique to enhance the performance ?

Q---1

Perform appropriate de-normalization technique to any of the one-to-one and one-to-many relations.??

same course students start discussion.

2 ques me dono y=tables ko combine kr k 1 table bnana hai??

or 1 quess me kese apply krna he denormalization plss discuss

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