Q. What does key restructuring in data transformation involve?

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Q. What does deduplication in data transformation refer to?

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Q. What is the primary challenge in ETL functions when dealing with source data from disparate systems?

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Q. What does data integration and consolidation involve in the context of ETL functions?

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Q. What is the Entity Identification Problem in the context of data integration?

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Q. What is one approach to solving the Entity Identification Problem?

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Q. How do some companies handle the Entity Identification Problem in two phases?

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Q. What is the Multiple Sources Problem in the context of data integration?

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Q. How might you decide which source to use when faced with the Multiple Sources Problem?

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Q. What is the primary purpose of transforming dimension attributes in the context of data warehousing?

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Q. When considering the implementation of data transformation, what factors should be taken into account?

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Q. What should you consider when determining whether to use manual techniques or data transformation tools for data transformation?

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Q. What is one advantage of using transformation tools in data transformation processes?

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Q. What happens when changes occur to transformation functions in a data warehouse that uses transformation tools?

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Q. When might manual techniques be more suitable for data transformation?

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Q. What is a major disadvantage of using manual techniques for data transformation?

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Q. How does the handling of metadata differ between automated tools and in-house programs in data transformation?

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Q. What is the term used to describe the process of populating all data warehouse tables for the very first time?

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Q. What is the term used to describe the process of applying ongoing changes to the data warehouse in a periodic manner?

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Q. When does a "full refresh" in data loading occur?

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