Q. Why is operational data not directly usable for strategic decision making in a data warehouse?

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Q. What is one of the key challenges in data transformation when moving data to a data warehouse?

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Q. What does data transformation in the context of a data warehouse involve?

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Q. Why is it essential to consider data transformation functions seriously?

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Q. What is the main focus of data transformation in a data warehouse?

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Q. What is the first basic task in data transformation?

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Q. When might you need to perform the selection task during data transformation?

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Q. What is the purpose of the splitting/joining task in data transformation?

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Q. What does the conversion task primarily aim to achieve in data transformation?

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Q. When might summarization be part of the data transformation function?

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Q. What does the enrichment task involve in data transformation?

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Q. Which of the following is a common transformation type that involves changes to the data types and lengths of individual fields?

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Q. What does decoding of fields typically involve in data transformation?

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Q. When is the splitting of single fields necessary in data transformation?

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Q. What is the purpose of merging of information in data transformation?

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Q. In data transformation, what is an example of a calculated and derived value?

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Q. What does character set conversion in data transformation primarily involve?

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Q. When might a company need to convert units of measurements in data transformation?

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Q. What is the purpose of date/time conversion in data transformation?

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Q. What does key restructuring in data transformation involve?

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