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To describe consistent transaction behavior when transactions run at the same time, database researchers have defined a transaction isolation model called serializability .

为了描述同时执行的多个事务如何实现数据一致性,数据库研究人员定义了被称为串行化处理的事务隔离模型。

In order to improve the efficiency of DBMS, Concurrent Control is the basic requirement on concurrent transactions execution. When transactions execute instantaneously, Lock Mechanism which could ensure transaction serializability is a good way. But the problem that LM produces should be faced.

并发控制是数据库管理系统提高运行效率的基本要求,事务并发执行时,采用锁机制是保证事务可串行化的一个方法,但因此而产生的死锁问题是一个必须面对的问题,其根本原因是由于数据共享的要求而造成的。

Serializability may not be implemented using only row-level locks; there must be another mechanism that prevents a newly inserted row from becoming visible to a transaction that has already executed a query that would return the row.

如果仅仅通过"行级锁"是无法实现事务序列化的,必须通过其他机制保证新插入的数据不会被刚执行查询操作的事务访问到。

In addition, a new synchronization scheme, Double-Timestamp Transaction-Level Synchronization model is put forward to solve the synchronization problem under the 3-tier replication architecture (Mobile Client - Synchronization Server - Database Server). DTSTLS utilizes a novel double-timestamp strategy to promote the efficiency of synchronization. Besides, it ensures serializability and consistency of the mobile database system through transaction-level conflict reconciliation.Mobile transaction processing is another key technology to provide efficient information service in mobile computing environment.

通过引入一种乐观并发控制方法与两段锁协议相结合的移动事务处理机制,本文重点解决了交互式长事务的问题,并提供了对移动主机任意移动性和数据库系统一致性的支持;在移动对象数据库方面,本文提出了一种新的移动对象数据库模型—离散时空轨迹移动对象数据库模型,重点阐述了DSTTMOD模型中的位置表示方法及位置更新处理策略,并分别给出了基于GRID文件和基于QUAD树的移动对象索引算法。

The agent appoints Attorney as chief attorney to be in charge of the specific matters relating to the purchase.

二、受托人指派律师为此受托事务的首席律师,全权负责此项收购股权工作的具体法律事务

Spring government general affairs does not depend on J2EE server, plant in Spring an office management that any function bring into Spring, through be being configured in ApplicationContext.xml file.

Spring管理事务不依赖J2EE服务器,在Spring种把任何函数纳入spring的事务管理,通过在applicationContext.xml文件中配置。

Each transaction will hava its own Transation Script,Although common subtask can be broken out into sub-procedures.

每个事务都有自己的事务脚本,尽管子任务可以被拆成子过程。

If you dream in Technicolor, the one outstanding thing that this presages is that you will have increasing security and prosperity in your business affairs, if the rest of the symbols point to a bad time for you and your affairs, the dream in color shows that you will have help behind the scenes that will enable you to master your problems.

如果您的梦想,在Technicolor公司,一个优秀的东西,这预示的是,您将有越来越多的安全和繁荣,在您的商业事务,如果其余的符号指向一个坏的时间,为您和您的事务,梦想在彩色显示您将有帮助的幕后,这将使您掌握您的问题。

The collocated transaction can insure of efficient and correct work and it has lock and time impression control models.

分布式的并发事务处理能保证事务的高效正确的进行,它包括锁和时间印两种控制模型。

Exactly at the moment I heard that, I felt an urge to go do my business in the bushes,*tinkle*, you know, that kind of stuff.

就在我听到的那一刻,我感到我急需到灌木丛里处理我的事务。哦,你知道,就是那种事务

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。