Results 261 to 270 of about 32,304 (305)
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Concurrency control of tiered flat transactions
1995In some database systems it has become evident that transactions can consist of a succession of ‘tiers’ where different types of data are being accessed. Despite the different nature of the data accessed by each tier the transactions cannot be split up because of the interdependencies between the albeit different data of the individual tiers.
Keane, John, Hussak, Walter
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A concurrency control scheme for nested transactions
Microprocessing and Microprogramming, 1989Abstract Locking rules for concurrency control in nested transaction model, in which parent/child parallelism, sibling parallelism, and arbitrary commitment-dependence relationship between transactions are allowed, are presented. The locking rules are based on the lock transformation scheme that never allows the commit deadlock to occur, which could ...
SHIN, DC Shin, Dongchun +1 more
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Cautious transaction schedulers with admission control
ACM Transactions on Database Systems, 1985We propose a new class of schedulers, called cautious schedulers , that grant an input request if it will not necessitate any rollback in the future. In particular, we investigate cautious WRW-schedulers that output schedules in class WRW only.
Naoki Katoh +2 more
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Concurrency Control for Transactional Composite Services
2009 Congress on Services - I, 2009A composite service can be built from Web Services, and, its workflow can be specified using BPEL4WS. Many composite services are long-running transactional processes. This paper proposes a concurrency control scheme for executing transactional composite services.
Xinfeng Ye, Yi Chen
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Intangible Controlled Transactions
SSRN Electronic Journal, 2018This paper is about the controlled transactions in the case of intangibles. The intangibles have characteristics which are similar with than of tangibles. Through transfer pricing we have rights which granted from some companies to other, to achieve the appropriate profits and to minimize the losses. The transfer of intangibles allows the allocation of
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Unifying concurrency control and recovery of transactions
Information Systems, 1994Abstract Transaction management in shared databases is generally viewed as a combination of two problems, concurrency control and recovery, which have been considered as orthogonal problems. Consequently, the correctness criteria derived for these problems are incomparable.
Gustavo Alonso +6 more
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TRANSACTION PROCESSING IN DISTRIBUTED CONTROL SYSTEMS
IFAC Proceedings Volumes, 1979Abstract While the flexibility of a process control system may be enhanced by modular design, the effectiveness of the system often depends upon coordination of the modules’ actions. The conflict between designing clearly bounded modules and providing for coupling between them gives rise to important design tradeoffs in two major areas: the ...
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From Transactional Distance to Transactional Control
2007This book offers an exploration of the ways that a learning trajectory is determined, and, in particular, how an online learning environment can affect that trajectory. It provides suggestions about how, primarily through technologies that underlie what is vulgarly known as “Web 2.0,” networked learning environments should be constructed to give ...
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Advanced Concurrency Control for Transactional Memory Using Transaction Commit Rate
2008Concurrency control for Transactional Memory (TM) is investigated as a means for improving resource usage by adjusting dynamically the number of concurrently executing transactions. The proposed control system takes as feedback the measured Transaction Commit Rate to adjust the concurrency.
Mohammad Ansari +5 more
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Commit scope control in nested transactions
1996A common limitation of all the existing nested transaction models is that they only allow subtransactions to commit either to parent transactions or to databases. In order to adequately balance atomicity and concurrency at selected levels of a transaction hierarchy, the notion of scoped commitment is proposed, that allows a subtransaction to commit to ...
Qiming Chen, Umeshwar Dayal
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