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On the serializability theorem for nested transactions. (English) Zbl 0807.68026
Summary: The fundamental theorem of the classical serializability theory states the necessary and sufficient conditions for the conflict serializability of an execution. In this paper, we extend the correctness criteria of the classical theory by presenting a definition of conflict serializability for concurrency control of nested transactions. We define a serialization graph for nested transactions and we prove that its acyclicity is a sufficient and necessary condition for conflict serializability.

MSC:
68P15 Database theory
68Q10 Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.)
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