Explain how many ways you create ports?


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More Data Warehouse General Interview Questions

Explain what is a view as it relates to system modeling?

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why we use dmr model in cognos report studio ? give me difference between dmr model and relational model.

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Explain what are the various methods of getting incremental records or delta records from the source systems?

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Explain what is the data type of the surrogate key?

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What is the definition of cube in datawarehousing?

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What are the other names given to data warehousing?

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State any 5 of Cods guidelines of an OLAP system, brief description each?

1 Answers  


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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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.

1 Answers   IBM,


How to join 3 database like flat file, oracle, db2 in informatrica?

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DWH architecture?

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Explain when do we analyze the tables? How do we do it?

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