What is the difference between mapping parameter & mapping variable in data warehousing?


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More Data Warehouse General Interview Questions

How can we schedule the graph in unix?

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What is the difference between snowflake and star schema? What are situations where snowflake schema is better than star schema when the opposite is true?

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What is a fact, dimension, measure?

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Why denormalization is promoted in universe designing?

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What is an IDQ file? What is the purpose of the IDQ file and what kindof information does it usualy hold? Can it be imported by informatica?

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Explain what are data marts?

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for data loading in oracle, what are conventional loading , what are conventional loading and direct-path loading?

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What is Star Schema?

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Explain about core dimension, balanced dimension, and dirty dimension?

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Where the data cube technology is used?

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Hyperion is the one of the tool in data ware house. Its an olap tool. Why you cant display that tool?

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Why should you put your data warehouse on a different system than your oltp system?

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