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On Transactional Workflows, Amit P. Sheth, Marek Rusinkiewicz
On Transactional Workflows, Amit P. Sheth, Marek Rusinkiewicz
Kno.e.sis Publications
The basic transaction model has evolved over time to incorporate more complex transactions structures and to take the advantage of semantics of higher-level operations that cannot be seen at the level of page reads and writes. Well known examples of such extended transaction models include nested and multi-level transactions. A number of relaxed transaction models have been defined in the last several years that permit a controlled relaxation of the transaction isolation and atomicity to better match the requirements of various database applications. Correctness criteria other than global serializability have also been proposed. Several examples of extended/relaxed transaction models are …