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Issue No.12 - December (1991 vol.24)
pp: 46-53
<p>The problem of interdatabase dependencies and the effect they have on applications updating interdependent data are addressed. A model that allows specifications of constraints among multiple databases in a declarative fashion is proposed. The separation of the constraints from the application programs facilitates the maintenance of data constraints and allows flexibility in their implementation. It allows investigation of various mechanisms for enforcing the constraints, independently of the application programs. By grouping the constraints together, it is possible to check their completeness and discover possible contradictions among them. The concepts of polytransactions, which use interdatabase dependencies to generate a series of related transactions that maintain mutual consistency among interrelated databases, is discussed.</p>
Marek Rusinkiewicz, Amit Sheth, George Karabatis, "Specifying Interdatabase Dependencies in a Multidatabase Environment", Computer, vol.24, no. 12, pp. 46-53, December 1991, doi:10.1109/2.116888
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