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Data Warehousing
Data in the data warehouse are loaded and refreshed from operational systems.
True
Correct Answer:
True
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Data Warehousing
Every key used to join the fact table with a dimensional table should be a surrogate key.
Both status data and event data can be stored in a database.
Joining is the process of partitioning data according to predefined criteria.
Most operational systems are based on the use of transient data.
Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem.
Independent data marts are often created because an organization focuses on a series of short-term business objectives.
Static extract is used for ongoing warehouse maintenance.
Periodic data are data that are physically altered once added to the store.
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