两阶段封锁可串行化强制性的实现  

Mandatory Implementation of Serializability in Two Stage Blockades

作　　者：冯凯平[1] 

机构地区：[1]四川烹饪高等专科学校信息技术系

出　　处：《微型电脑应用》2011年第9期42-43,5,共3页Microcomputer Applications

摘　　要：数据库的共享性是建立在多个共享事务的并发执行基础之上的。为了保证多个事务的并发执行,并发控制器对各事务动作的调度应当是可串行化的。然而,在实际调度过程中,并非所有的调度都是可串行化的。为了确保事务之间的可串行性关系,可使用两阶段封锁将非可串行化调度强制实现为可串行化调度。Database sharing is based on the concurrent execution of many sharing tasks.In order to guarantee the concurrent execution of the many tasks,the scheduling of all task actions using the concurrent controller must be serializable.However,in the actual operation process,not all of the scheduling isserializable.In order to ensure that the relationship of serializable between all tasks,this paper could use the mandatory transfer of inserializablescheduling to serializable scheduling through two stage blockades.

关 键 词：两阶段 封锁 事务 调度 可串行化 强制 动作 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]