What is a staging area? Do we need it? What is the purpose of a staging area?


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More Data Warehouse General Interview Questions

How are the dimension tables designed?

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What are the advantages of query studio compared to report studio?

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what is indexing ? what are different types of indexes supported by oracle ?

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What is the difference between dependent data warehouse and independent data warehouse?

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Explain ddl (data definition language)?

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What is is a star schema?

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How can we transform row to column?

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Explain the process of extracting data from source systems,storing in ods and how data modeling is done?

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Difference between e-r modeling and dimentional modeling?

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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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Theare is a Database In analysis services,How we will specify the fact table.(i.e whether we will create the measure objects for the fact tbl.) or it will reside insde the database.

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Name a few sectors which use data warehousing?

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