How to eliminate duplicate rows from flat file?


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More Data Warehouse General Interview Questions

How can we do data cleaning?

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Explain differences between star and snowflake schemas?

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Can you explain how analysis service works?

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Ist the schema that a data warehouse system can implements.

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Explain what are the advantages data mining over traditional approaches?

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how do you use commit frequencies? how does it affect loading performance?

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Explain what does level of granularity of a fact table signify?

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What are Aggregate tables?

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Can you state some of the innovations throughout history?

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Explain what is the difference between view filter and report filter?

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What are parallel querys and query hints?

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Explain difference between snow flake and star schema. What are situations where snow flake schema is better than star schema to use and when the opposite is true?

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