A data warehouse maintains historical data that do not necessarily provide current status,except in real-time systems.
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Q5: Because of performance and data quality issues,most
Q6: The centralized data warehouse helps to simplify
Q7: According to conventional wisdom,independent data marts are
Q8: The design,creation,and use of metadata and its
Q9: An independent data mart is a small
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
Q15: There are many middleware tools that business
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