The grain of a data warehouse indicates the size and depth of the records.
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Q82: A snowflake schema is usually heavily aggregated.
Q83: An operational data store (ODS) is not
Q84: A fact table holds descriptive data about
Q85: Multidimensional OLAP (MOLAP) tools use variations of
Q86: NoSQL is a great technology for storing
Q88: An operational data store typically holds a
Q89: When a dimension participates in a hierarchy,
Q90: The first requirement for building a user-friendly
Q91: For performance reasons, it may be necessary
Q92: The major advantage of the data propagation
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