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Authorizing access to individual data objects in a collection is a challenge when both the collection and the user group are large and dynamic. It becomes even more complex when the authorization policies are based on the spatial and temporal references of the data objects. Using the real-world scenario of the employer, CycloMedia Technology, this paper will present a solution to this issue in the combination of two components of Oracle Database Enterprise Edition: the Spatial Option and the Virtual Private Database feature.
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