What is called data cleaning?


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More Data Warehouse General Interview Questions

How to reduce warnings?

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What is a real-time data warehouse? How is it different from near to real-time data warehouse?

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How to handle time period attribute for time dependent data?? a.)add time period as a part of pk b.)add time period simply and make it nullablec.)add time period simply and make it not null.

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ware house management system is used?

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Tell me what is degree of a relation?

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What is partitioning? What are the types of partitioning?

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What is data validation strategies for data mart v?

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What is data warehosuing hierarchy?

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Explain the main difference between inmon and kimball philosophies of data warehousing?

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How to handle multi value dimensions?

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explain about balanced dimension,

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Explain me what is vldb?

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