Time-Variant Data Base Instance
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A Time-Variant Data Base Instance is a data base instance that ...
- Example(s):
- a Subject-Oriented Time Variant Database, such as a data warehouse.
- an Integrated Time Variant Database, such as a data warehouse.
- a Non-Volatile Time Variant Database, such as a data warehouse.
- …
- Counter-Example(s):
- See: Data Warehouse, Subject-Oriented Data Base, Integrated Data Base, Non-Volatile Data Base.
References
2013
- https://docs.oracle.com/cd/B10500_01/server.920/a96520/concept.htm
- QUOTE: A common way of introducing data warehousing is to refer to the characteristics of a data warehouse as set forth by William Inmon: Subject Oriented, Integrated, Nonvolatile, Time Variant.
- Time Variant: In order to discover trends in business, analysts need large amounts of data. This is very much in contrast to online transaction processing (OLTP) systems, where performance requirements demand that historical data be moved to an archive. A data warehouse's focus on change over time is what is meant by the term time variant.
- QUOTE: A common way of introducing data warehousing is to refer to the characteristics of a data warehouse as set forth by William Inmon: Subject Oriented, Integrated, Nonvolatile, Time Variant.