Problem1 why are the operational system keys not, Ask an Expert

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1 Why are the operational system keys not recommended for forming data warehouse primary keys? Give any two examples

2 Explain the following performance tuning techniques

Data Partition
Parallelism

3 What is repository? How is it helpful to the data warehouse maintenance?

4 Explain the following strategies for Data Warehouse testing

Completeness testing
Data transformation testing

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DBMS, Programming

Category:- DBMS
Reference No.:- M9586658

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