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Strictness and serializability
1986In the theory of concurrency control several notions of the correctness of logs have been developed, particularly final-state-, view-, and conflict-preserving-serializability. SR, VSR, and CPSR are the respective sets of logs. In each case a strict variant can be defined. The respective sets are SSR, SVSR, and SCPSR.
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Correctness Criteria Beyond Serializability
2009A transaction is a logical unit of work that includes one or more database access operations such as insertion, deletion, modification, and retrieval [8]. A schedule (or history) S of n transactions T1,.,Tn is an ordering of the transactions that satisfies the following two conditions: (i) the operations of Ti (i = 1,.,n) in S must occur in the same ...
Ouzzani, Mourad +2 more
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Update serializability in locking
1986There are many concurrency control algorithms that use weak consistency of read-only transactions to enhance concurrency in database systems[3,8,18]. We identify these schedules (which become serializable when the weakly consistent read-only transactions are deleted from them) as update serializable schedules.
R. C. Hansdah, L. M. Patnaik
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When serializability comes without cost
2008 IEEE/ACS International Conference on Computer Systems and Applications, 2008It is usually expected that performance is reduced by using stricter concurrency control, which reduces the risk of anomalies that can lead to data corruption. For example, the weak isolation level Read Committed allows anomalies that are prevented by two-phase locking (abbreviated 2PL), and because 2PL holds locks for longer than RC, it has lower ...
Mohammad Alomari +3 more
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Autonomous transaction execution with epsilon serializability
[1992 Proceedings] Second International Workshop on Research Issues on Data Engineering: Transaction and Query Processing, 2003The authors study the feasibility of autonomous transaction execution in systems with asynchronous transaction processing based on epsilon serializability (ESR). The abstract correctness criteria defined by ESR are implemented by techniques such as asynchronous divergence control and asynchronous consistency restoration.
C. Pu, A. Leff
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Serializability Preserving Extensions of Concurrency Control Protocols
2000The verification system PVS is used to obtain mechanized support for the formal specification and verification of concurrency control protocols, concentrating on database applications. A method to verify conflict serializability has been formulated in PVS and proved to be sound and complete with the interactive proof checker of this tool.
Chkliaev, D. +2 more
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Efficiently Supporting Multi-Level Serializability in Decentralized Database Systems
IEEE Transactions on Knowledge and Data Engineering, 2023Zhanhao Zhao, Wei Lu, Meihui Zhang
exaly

