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Data Warehousing
Star schema is suited to online transaction processing, and therefore is generally used in operational systems, operational data stores, or an EDW.
True
Correct Answer:
False
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Data Warehousing
Successful data warehousing requires that a formal program in total quality management (TQM) be implemented.
Derived data are detailed, current data intended to be the single, authoritative source for all decision support applications.
Data in the data warehouse are loaded and refreshed from operational systems.
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.
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