SophiaPretty

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    Strayer,Devery,Harvard University
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    WalMart
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Category > Computer Science Posted 03 Dec 2017 My Price 10.00

. Define the terms: OLAP (online analytical processing),

1. What is a data warehouse? How does it differ from a database?

 

Reading paper: Introduction, page 1

 

2. Define the terms: OLAP (online analytical processing), ROLAP (relational

OLAP) and MOLAP (multidimensional OLAP)

 

Reading paper: Page 2, paragraph 2

 

3. Describe the characteristics of a data warehouse.

 

The multidimensional model

See question 4 below.

 

4. What is the multidimensional data model? How is it used in data warehousing?

 

Reading paper: chapter 4

 

5. Define the following terms: star schema, snowflake schema, fact constellation,

data marts.

 

Reading paper: chapter 5

 

6. Describe the steps of building a warehouse.

 

Reading paper: page 3

 

7. What considerations play a major role in the design of a warehouse?

 

Reading paper: chapter 5

 

8. Describe the functions a user can perform on a data warehouse.

 

Reading paper: chapter 4

 

9. List the difficulties in implementing a data warehouse.

 

Mostly stuff in chapter 3. (ie. quality control of data).

 

I would like help with these questions. I attached the material according to which the questions need to be answered

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SophiaPretty
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Status NEW Posted 03 Dec 2017 01:12 PM My Price 10.00

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