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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

Views: 9219

Replies to This Discussion

plz give some this assignment

solution idea

Solution upload kr dO 

share ideas

question 2 main kn c technique use krni ha??????

VU site is down. 

Service Unavailable

I have sent assignment via email to course email and IT support, Along with attachment i added the error coming on site

Assignment 1

Question 1

Applicant

Appli id

Appli name

 f.name

 Gender

Appli DOB

Research

Propasal status

 

Appli address

 Email

CNIC NO

Publication

Advisor id

Depaartment id

 

 

Addmission committee

Addmission committee

Addmission  status

Research proposal

Applicant id

 

 

Demormilization  of one to one relatios

 

Appli id

Addmis committee

Appli name

F.name

Gender

Research

Proposal

status

Appli  address

 

Email

CNIC no

Publication

Advisor id

Department id

Research propasal

Addmission status

 

Solution of Q2

brother kaya s ko hm sql server mi likey gy?

yr question main pre-joining use krni ha kaya or sql main krna ha question?????

Dear Student,

You are required to apply appropriate de-normalization technique to enhance the performance so that we don’t need to perform join. You can use method of denormalization to enhance its performance. If you can solve the problem and demonstrate it with the help of snapshot then you can also give it in solution file.

Regards,

RSS

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