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Data Warehousing Interview Questions and answers [Part 1]

 

Question :: What is Data Warehousing?

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Question :: hat are fundamental stages of Data Warehousing?

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Question :: What is Dimensional Modeling?

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Question :: What is Fact table?

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Question :: What is Dimension table?

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Question :: What are the Different methods of loading Dimension tables?

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Question :: I What is OLTP?

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Question :: What is OLAP?

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Question :: What is the difference between OLTP and OLAP?

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Question :: Describes the foreign key columns in fact table and dimension table?

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Question :: What is Data Mining?

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Question :: What is the difference between view and materialized view?

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Question :: What is ER Diagram?

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Question :: What is ODS?

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Question :: What is ETL?

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Question :: What is VLDB?

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Question :: WIs OLTP database is design optimal for Data Warehouse?

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Question :: If de-normalized is improves data warehouse processes, why fact table is in normal form?

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Question :: What are lookup tables?

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Question :: What are Aggregate tables?

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