Questions from Database Management


Q: List and describe the various situations in which it becomes essential to

List and describe the various situations in which it becomes essential to further normalize dimension tables.

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Q: Match the following terms and definitions: - periodic data

Match the following terms and definitions: - periodic data - data mart - star schema - data scrubbing - data transformation - grain - reconciled data - dependent data mart - real-time data warehouse -...

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Q: Explain through common examples why determining grain is critical.

Explain through common examples why determining grain is critical.

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Q: What are the two situations in which factless fact tables may apply

What are the two situations in which factless fact tables may apply?

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Q: What is the meaning of the phrase “slowly changing dimension”?

What is the meaning of the phrase “slowly changing dimension”?

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Q: Why should changes be made to the data warehouse design? What

Why should changes be made to the data warehouse design? What are the changes that need to be accommodated?

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Q: Briefly explain how the dimensions and facts required for a data mart

Briefly explain how the dimensions and facts required for a data mart are driven by the context for decision making.

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Q: Martin was very impressed with your project plan and has given you

Martin was very impressed with your project plan and has given you the go-ahead for the project. He also indicates to you that he has e-mails from several key staff members that should help with the d...

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Q: Explain how data integration is not the only data consolidation technique across

Explain how data integration is not the only data consolidation technique across an enterprise.

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Q: Describe the current key trends in data warehousing.

Describe the current key trends in data warehousing.

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