DB 2使用数据库对象上的锁来确保事务的一致性。
DB2 ensures transaction consistency using locks on database objects.
DB 2Express - C总是为应用程序维护事务的一致性。
DB2 Express-C will always maintain transactional consistency for your applications.
另一方面，如果事务一致性是关键需求，那么则需要选择更加同步的解决方案。
On the other hand, if transactional consistency is a key requirement, then a more synchronous option is required.
这些简单的示例应该清楚地说明，为了维护数据完整性和一致性，必须使用事务。
These simple examples should make it clear that transactions are necessary in order to maintain data integrity and consistency.
不过，如果故障事务中包括多个资源管理器，则管理员需要检查数据的一致性。
However, administrators need to check the consistency of the data if multiple resource managers are involved in the failing transactions.
同样，缺乏有效的(或任何)事务策略将对您数据的完整性和一致性造成负面影响。
Likewise, the lack of an effective (or any) transaction strategy will have a negative effect on your data's integrity and consistency.
只有那些与一致性快照相符的镜像被写到检查点文件，行影子使当前执行的事务可以在检查点创建期间不受限制地运行。
Only those images that correspond to a consistent snapshot are written to the checkpoint file, and the row shadows allow the currently executing transactions to run unrestricted during checkpointing.
这可能是在使用事务时出现的主要数据完整性和一致性问题了。
This is perhaps the primary data-integrity and consistency issue when transactions are used.
换句话说，一个不能容忍网络分区的系统可以利用像事务这样普通的技术来实现一致性和可用性。
In other words, a system that is not tolerant to network partitions can achieve consistency and availability using common techniques such as transactions.
因此如果你能处理好上述的数据不一致性，而且不想为了一个或少数几个方法引入JTA的复杂性，你应该使用本地事务。
So if you can deal with the above data inconsistency and really don't want JTA complexities for just one or a few methods, you should use local transactions.
这种日志记录方法确保了所有已提交事务的数据一致性，这样就可以执行应急恢复。
This method of logging ensures data consistency for all committed transactions so that crash recovery is possible.
事务需要确保高度的数据完整性和一致性。
Transactions are necessary to ensure a high degree of data integrity and consistency.
如果事务一致性和可用性都是必需的，那么将进一步缩小可选择的范围。
If both transactional consistency and availability are required, then this may further narrow the choices.
一致性：事务保持数据上定义的所有不变的属性(如完整性约束)。
Consistency: a transaction preserves all the invariant properties (such as integrity constraints) defined on the data.
传统上，企业应用的重点是数据一致性、事务可靠性，还有不断增加的吞吐量。
Traditionally, enterprise applications have focused on data consistency, transactional reliability, and increased throughput.
WebSphereProcessServer通过多个并发线程访问其数据库，并使用行级锁定来确保其事务期间的数据一致性。
WebSphere Process Server accesses its databases in multiple concurrent threads and USES row-level locking to ensure data consistency during its transactions.
WS-AT 可以确保以事务方式执行对这三种Web服务的调用，并向应用程序提供原子性、一致性、隔离性和持久性 (ACID)语义。
WS-AT ensures that invocation of these three Web services is performed in a transactional fashion, providing Atomicity, Consistency, Isolation and Durability (ACID) semantics to the application.
通常，HA解决方案的设计由两个因素驱动，正常运行时间(uptime)需求和事务一致性。
In general, HA solution design is driven by two factors, uptime requirements and transactional consistency.
特别是它允许指定Web服务间长期运行的事务，提高Web服务应用程序的一致性和可靠性。
This especially allows specifying long-running transactions between web services, increasing consistency and reliability for web services applications.
联邦两阶段提交(F2PC)为WebSphereFederationServer增加非常可取的功能，使应用程序可以在保持事务一致性的情况下，执行多站点更新。
Federated two phase commit (F2PC) adds desirable functionality to WebSphere Federation Server in that it enables applications to perform multisite updates with full transactional consistency.
它提供的长期运行的事务的模型提高了Web服务应用程序的一致性和可靠性。
It provides a long-running transaction model that allows increasing consistency and reliability of web services applications.
一致性保证事务中的这两个操作同时成功或同时失败。
Consistency guarantees that both operations in the transaction either succeed or fail.
一致性保证此单个单元(或事务)中的所有操作要么都成功执行，要么都不执行。
Consistency guarantees that either all the operations in this single unit (or transaction) are performed successfully, or none of them is performed.
如果你假设一个事务总是一个一致性的工作单元，整个系统的所有更新都被执行，很显然系统仍能够保持一致性。
If you assume that one transaction is always a consistent piece of work, it is clear that the system remains consistent if all of its updates are applied.
因此，清单13中的代码从事务角度来说毫无用处；尽管看上去它使用事务来维护原子性和一致性，但事实上并没有。
Therefore, the code in Listing 13 is useless from a transaction standpoint; although it appears that it USES transactions to maintain atomicity and consistency, in fact it does not.
一致性意味着事务代表应用程序状态的正确转换——即事务不能违反应用程序中固有的任何完整性限制。
Consistency means that the transaction represents a correct transformation of the application state — that any integrity constraints implicit in the application are not violated by the transaction.
将数据库操作组合到事务中只是确保数据一致性解决方案的一半。
Combining database operations into transactions is half of the solution to ensure data consistency.
现在，我们将事务定义为对应用程序状态的相关操作的集合。 事务具有原子性、一致性、隔离性以及持久性 这几个属性。
We can now define a transaction as a related collection of operations on the application state, which has the properties of atomicity, consistency, isolation, and durability.
如果这些是惟一需要考虑的因素，那么使用2pc协议的分布式事务应当是保证数据一致性和完整性的最佳方法。
Were these the only factors under consideration, a distributed transaction using the 2pc protocol would be the best approach to guarantee data consistency and integrity.
如本系列的第一篇文章所述，许多常见的事务陷阱都会影响到事务行为，并且由此会降低数据的完整性和一致性。
As you saw in the first article of this series, many common transaction pitfalls can affect transactional behavior and, consequently, diminish your data's integrity and consistency.
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