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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.

Rules for Marking
It should be clear that your assignment would not get any credit if:

⦁ The assignment is submitted after due date.
⦁ The submitted assignment does not open or file is corrupt.
⦁ The assignment is copied. Note that strict action would be taken if the submitted assignment is copied from internet or any other source.

⦁ You should consult recommended books to clarify your concepts as handouts are not sufficient.
⦁ You are supposed to submit your assignment in .doc format. Any other formats like scan images, PDF, Zip, rar, bmp, docx etc will not be accepted 
⦁ You are advised to upload your assignment at least two days before Due date.
⦁ This assignment file comprises of Five (5) pages.
⦁ Assignment is Graded and will contribute marks in final grades


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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Views: 9138

Replies to This Discussion

solution plzz

nai koi hega solution Question # 2 ka just bta day koi kay karna kiya hay 

yar first to share kr do ap 

mazak udhny ki bhjaya solution upload kr do plssss

Dear Friends Second Question kesy hoga??? koi tu btay

Oh koi to solution upload kr do. itni kanjoosi achi nai hoti. ap humain solution do hum ap ko dua dain ge. Hahahahaha.....

bhai ap first share tO share kr do :)

kindly share complete solution

Solution please 

Question by student::::

Respected Sir

We need to solve our assignment using SQL software or just by making tables?
Regards,
instructor's reply
Dear Student,

You don't need SQL to solve this assignment. You can just make a table diagrammatically.
Thanks
I think now everybody clear what to do in second question :)

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