Questions and Answers
Which of the following best defines a data warehouse?
A database that supports decision-making by providing consolidated historical data
What does it mean for a data warehouse to be subject-oriented?
It excludes data that are not useful in the decision-support process
What is the main purpose of a data warehouse in relation to information processing?
To provide a platform for consolidated, historical data for analysis
In the context of data warehousing, what does 'time-variant' refer to?
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What is the key feature that distinguishes a data warehouse from an operational database?
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What is the primary focus of data warehouse?
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Which type of data sources can be integrated into a data warehouse?
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What distinguishes data warehouse data from operational database data in terms of time horizon?
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What is a characteristic of the key structure in the data warehouse?
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How does traditional heterogeneous DB integration differ from data warehouses?
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