Framework for handling business transactions

Details Framework for handling business transactions Framework for handling business transactions

2011-03-08

2011-03-08

Le, Uyen T. (Department: 2157)

Data processing: database and file management or data structures

Data integrity

Transactional processing

C707S704000

Reexamination Certificate

active

07904434

ABSTRACT:
Techniques are provided for freeing up resources before operations that change the resources have successfully completed. Resources are freed up by committing database transactions that perform portions of operations before the operations themselves have successfully completed. If the operations fail to complete successfully, then “compensation information” is used to remove the effects of the committed changes that were performed as part of the operation. Techniques are also provided for allowing database transactions to update values without retaining exclusive locks on those values. Operational constraints set forth conditions that must be satisfied before an update is allowed to proceed. If an attempt is made to update a particular value that has changes that may be undone, then the database server determines a plurality of “possible result values” for the particular value. If the possible result values satisfy the operational constraint conditions, then the update is allowed to proceed.

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Agrawal et al “Constrained Shared Locks for Increasing Concurrency in Databases”, Journal of computer and system sciences 51, 1995, pp. 53-63.
Umeshwar Dayal et al “Business Process Coordination: State of the Art, Trends, and Open Issues”, Proceedings of the 27th VLDB Conference, Roma, Italy, 2001, 11 pages.

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