There are many middleware tools that business users can use to access data stored in the data repositories,including data mining,reporting tools,and data visualization.
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Q10: A data warehouse maintains historical data that
Q11: An advantage of the hub-and-spoke data warehouse
Q12: A hosted data warehouse has less functionality
Q13: A data warehouse needs to support scalability,which
Q14: There are five levels of metadata management
Q16: Data warehouses contain vast amounts of internal
Q17: ETL tools transport data between sources and
Q18: There are three main types of data
Q19: Once the data are entered into the
Q20: A real-time data warehouse together with a
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