concurrency control

Research of Concurrency Control in DDBS Based on Lazy Replication

基于松散复制的分布式并发控制的研究

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Under Client/ Server architecture, to maintain cache consistency is indispensable when normal transactions are in progress, which is the basis of concurrency control.

在Client/Server结构中，进行日常事务处理时的首要任务就是保持缓存的一致性，这是进行并发控制的基础。

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Methods A nested transaction model and concurrency control algorithm based on locking is introduced.

方法采用一种嵌套事务模型及基于锁的并发控制算法.

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Abstract: A locking-based concurrency control scheme fo r object-oriented databases ( OODBs ) was presented.

文摘: 讨论 面向对象 数据库中的1种基于锁定的并 发控制 模式.

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On the study of various transaction processing methods and concurrency control protocols, a strategy based on multiple priority queues and database level lock protocol was raised to meet the real-time requirements of the configuration software database.

通过对各种事务处理和并发控制协议的研究，本文提出了基于多优先级队列和数据库级别的锁机制的策略来满足组态软件数据库系统的实时性要求。

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High performance concurrency control can improve parallel processing capabilities while decreasing perceived interactive time.

高效的并发控制策略可以提高系统的并行处理能力、改善交互响应时间.

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By introducing time management theory in HLA to concurrency control algorithm modeling of co-design system, time management strategies used in co-design system are proposed.

将HLA中的时间管理理论引入协同设计过程中并发控制的算法建模中，提出了一种应用于基于HLA的协同设计环境的时间管理策略。

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Based on CCPI work principle, network topology framework and concurrency control model of the system are constructed, concurrent conflict detection and control flow is presented as well.

基于客户协同产品创新设计工作原理，构建了创新系统网络拓扑结构框架及创新系统并发控制模型，提出了并发冲突检测与控制流程。

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At the same time an improved concurrency control model based on DHP-2 PL was presented.

根据DHP-2PL提出一种改进的并发控制模型.

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With optimistic concurrency control, the database manager releases the row or page locks immediately after a read operation.

通过实现乐观并发控制，数据库管理器可以在完成读操作后立即释放行或页锁。

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Research of Data Dissemination with Concurrency Control in Mobile Environment

移动数据库的并行数据分发控制技术研究

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And condition-locking, a concurrency control mechanism involving two-phase locking is designed.

设计了基于二段锁的并发控制方法.

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Optimistic locking is an extremely efficient concurrency control method that guarantees data integrity without placing any physical lock in the database.

乐观锁是一个极其有效的并发性控制方法，它可以确保数据完整性而又无需在数据库中放置任何物理锁。

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DB2 conforms to the ANSI standard for concurrency control using the following isolation levels with table and row level locking

DB2遵从用于以下隔离级别的带表锁及行锁的并发控制的ANSI标准

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A concurrency control algorithm based on the transaction conflict graph is proposed.

提出了一种基于事务冲突图的并发控制方法.

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Pessimistic concurrency control design pattern used in the enterprise model, reducing the chances of conflict.

企业并发控制时采用悲观设计模式，降低了冲突的机率。

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DMVOCC Distributed multiversion optimistic concurrency control with multiversion dynamic adjustment protocol was presented processingdistributedtransaction.

协议采用多版本乐观方法,使用多版本动态调整串行次序技术.

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Such a system requires concurrency control and recovery mechanisms.

这种系统需要并行控制和恢复机制.

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Two protocols of concurrency control can ensure timing constraints of real-time transactions and data well.

后者对硬实时事务不产生任何延迟,这两个协议都能较好地保证 实时 事务和实时数据的定时限制.

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Instead, we recommend the use of an optimistic locking strategy, delegating responsibility for concurrency control to appropriate application logic.

我们建议采用乐观锁定策略，将并发控制的责任委派给相应的应用程序逻辑。

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Temporal constraints of data object will influence the transaction scheduling and concurrency control.

而数据的时间限制则会对事务的并发控制和调度产生影响。

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A Theory of Concurrency Control in DDBMS

DDBMS中的并发控制理论

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Real-time multi version two-phase locking ( RTMV 2 PL ) concurrency control protocol was presented-time active database systems ( RTADBSs ).

提出了 实时 主动数据库系统 实时 多版本两阶段封锁并发控制协议 ( RTMV2PL ).

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Both version management and concurrency control are critical parts of Engineering Database Management System.

工程数据库的版本管理和并发控制是工程数据库管理系统的两个关键性技术.

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On conflicts access strategies of concurrency control in distributed transaction treatments

分布式事物处理中并发控制的冲突访问策略研究

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Deadlock in concurrency control was an important problem which should be resolved by distributed systems.

并发控制领域的死锁是分布式系统所要解决的一个重要问题，也是导致数据库资源不可用的一个重要因素。

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The concurrency control theory based on its transaction response time priority and the realization of initiative trigger is analyzed.

分析了系统基于事务响应时间限制优先级要求的并发控制原理及利用主动触发机制解决数据竞争的实现方式。

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Concurrency control algorithm is used to ensure the consistency of multiuser database while allowing a set of transactions to be executed concurrently.

并发控制算法是为了保证多用户并发执行下的数据库的一致性。

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The design transaction model and high concurrency control mechanism which guarantee correctness and consistency is the key in PDM.

解决PDM中对长周期设计事务的高度并发控制、保证设计数据的正确性和一致性是PDM中的关键技术。

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According to the comparison of existing Concurrency Control protocols, we selected the MCC-DATI protocol.

通过对现有的并发控制协议的比较,本文选择了MCC-DATI协议.

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