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Data warehousing (CS614)

Assignment # 01 (GRADED)

  Total marks = 20

                                                                                       Deadline Date = 21-May-2015

 

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 any other student. Both students will be punished severely.

 

1)      You should consult recommended books to clarify your concepts as handouts are not sufficient.

2)      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

3)      You are advised to upload your assignment at least two days before Due date.

4)      This assignment file comprises of Three (3) pages.

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


 Cricketinfo system

Online Cricketinfo system lets the users view the cricket statistics online. Cricketinfo is the online database which keeps the record of cricket matches and gives statistics for every international cricket match to its viewers. The database manages and stores all the fixture including past, current and future series. This helps to manage and store the record of all international cricket formats. It keeps information about future contests, location and ground information of each match. It keeps track of each individual cricket player and team. It provides a way to keep history of records or extra-ordinary performances that have been made in the history of cricket matches.

Question:

In context of the above case study, consider the below given ERD:

You are required to de-normalize all the One-to-Many and One-to-One relations given in the ERD by using appropriate De-normalization technique(s).

Note: There are three One-to-Many and one One-to-One relations in below ERD. You are required to de-normalize all these four relations.

 


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Attachments:

Replies to This Discussion

ye lain corrected assign

Attachments:

tnx  Ahmed Faraz Hashmi bhai. i got it

Exactly assignment ki samjh hi nhi arai he pta b to ho krna kia he?

Guys discuss it please

See an example on Collapsing Technique.

Attachments:
In my point of view
Use collaspe method to de-normalize one to one relation,
and use pre-join method to de-normalize one to many relation.
plz comment and tell that am i right?

Yes. You are right. Search some examples on pre-joining technique.

For one-many relations: 

Add columns of master table to detail table but don't include them in primary key.

please paste here the diagram which is helpful for this case.

good idea luqman bhai. ta k sab ko full aur same marks milen. o.oo

In my point of view

Use collaspe technique to de-normalize one to one relation.

And use pre-joining technique to de-normalize one to many relation.

Plz comment and tell am i ri8?

Koi reference book hay jis ko parh k ye assignment easily solve ho skay???

lecture number 7 suno ya handouts read kro hojayega..

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