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CS 614 Data Warehousing Assignment No. 2 Solution and Discussion Last date 30 May 2019

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cs614 assignment 2 solution

CS614 Assignment No 02 Solution Spring 2019

Attachments:

Assignment 

 

 

HyperMart is an online shopping store currently acquiring a large number of customers. To manage some performance issues this online store requires to de-normalize its database for order and Order detail tables.

Normalized table structures are given below:

 

Order Table

 

Order_ID

Order_Date

100

2-Feb-2019

201

2-Feb-2019

300

4-Feb-2019

1

 

….

 

M

 

Order details Table

 

Detail_ID

Order_ID

Product_ID

Product_Quantity

Sale_Amount

100

100

2

1

100

101

100

3

2

200

200

201

5

1

50

201

201

7

1

90

300

300

15

1

600

301

300

56

1

800

302

300

57

1

850

….

….

 

Table Information

 

·         Assume 1:12 record count ratio between Order master and Order detail for online store’s database

·         Assume 10 million orders (120 million records in order detail).

·         Assume 10 byte Order_ID.

·         Assume 30 byte header for master and 60 byte header for detail tables.

 

Task

 

You are required to perform the following tasks:

 

1.      De-normalize the given tables using Pre-joining technique

2.      Calculate the total space used with normalization

3.      Calculate the total space used after de-normalization

 

 

Best of Luck!

CS614 Assignmen No 02 Solution Spring 2019

Attachments:

in sab ma sy right kon sa ha sir 

CS614-Assignment-Solution

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