Database - Data Warehousing - Discussion

Discussion :: Data Warehousing - General Questions (Q.No.5)

5. 

A data warehouse is which of the following?

[A]. Can be updated by end users.
[B]. Contains numerous naming conventions and formats.
[C]. Organized around important subject areas.
[D]. Contains only current data.

Answer: Option C

Explanation:

No answer description available for this question.

Karuna Nidhan said: (Aug 11, 2011)  
Let us discuss with all the options as given.

1. If we are considering with first options it can not be updatedby end users because end user can only take the secision from that not modify because dw (data warehouse) contain only refine data.

2. If it will take different naming conventions then it will be difficult to remember all the conventions on a large dataset.

3. It should contain only imporatant area not fuzzy things so that a person can take write decision. So third option is currect.

4. If it will contain current data only then it may contain things which conclusion is not yet occured and also can contain unnecessary things.

A dw should have a concise and important information only and a long result of case study on that information.

M.Suganya Devi said: (Mar 14, 2013)  
Data warehouse should contain important information.

Jeevitha-Sit said: (Mar 14, 2013)  
A data warehouse is a subject-oriented, integrated, time-variant and non-volatile collection of data in support of management's decision making process.

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