But with distributed databases, each source may use a separate mechanism.
但是对于分布式数据库，每个源可能使用单独的机制。
To improve data availability and system performance, data replication methods are widely adopted in distributed databases and data warehouses.
在分布式数据库和数据仓库中，普遍采用数据复制的方法来提高数据的可用性和系统的性能。
To improve data availability and system performance, data replication methods are widely adopted in distributed databases and data warehouses.
数据复制是分布式数据库和数据仓库中常用的方法，以提高数据的可用性和系统的性能。
The dissertation brings about conclusions below:(1) The FDM and CD are main stream algorithms for mining association rules in distributed databases.
本文的主要工作和结论如下：（1）对于分布式关联规则挖掘问题，目前的主要算法是CD算法和FDM算法。
With the growing concern over data privacy-preserving problem, how to discover association rules from distributed databases becomes one of the hot topics of this field.
数据隐私问题引起人们的广泛关注，如何在分布式数据库的环境下挖掘关联规则成为研究的热点。
If you have a system with 100's of distributed databases it is far more difficult to keep all those stored procedures and triggers synchronized than it is to keep the application code synchronized.
如果你的系统基于分布式数据库，保持全部存储过程同步就会比应用代码同步要难得动。
The distinct data types must have exactly the same hierarchy and casts defined in all databases participating in the distributed queries.
在参与分布式查询的所有数据库中，各种数据类型必须定义有相同的层次结构和类型转换。
We will assume that you want to create a two-server cluster with users and databases equally distributed.
我们假设您打算创建一个包含两个服务器的集群，并且用户和数据库是均匀分布的。
We also don't use distributed transactions because making an application dependent upon multiple databases brings down the effective availability of the client.
我们也不使用分布式事务，因为让应用依赖于多个数据库会降低客户端实际的可用性。
A geographically distributed organization should consider an enterprise architecture that distributes ownership of each major component (frameworks, databases, applications,...) to a single location.
地理上分布的组织应该考虑将每个主要的组件(框架、数据库、应用程序，……)的所有权分配给单独位置的企业架构。
The challenge is on how to complete the creation of the two accounts in the ERP and the CRM databases as a single distributed transaction.
难题在于以单个分布式事务怎样在ERP和CRM数据库中完成两个帐户的创建。
Moving data between databases — an application moving data from one database to another requires a distributed transaction.
在数据库之间移动数据——将数据从一个数据库移动到另一个数据库的应用程序需要使用分布式事务。
An advanced form of distributed networking, grid computing links servers, databases, and applications into a "single" large system via specialized software.
作为分布式网络的高级形式，网格计算通过专门的软件将服务器、数据库和应用程序连接起来，成为一个“单一的”大型系统。
This allows distributed common access to IMS databases (and other databases) using the DB2 Information Integration product set.
这允许使用DB 2信息集成产品集对IMS数据库及其他数据库进行分布式的通用访问。
Distributed transaction — an ACID transaction between two or more independent transactional resources (for example, two separate databases).
分布式事务——两个或更多事务资源(比如，两个单独的数据库)之间的ACID事务。
If you would have a Distributed Transaction that handles two participating databases you could have a descriptor for one database something like [100, 1] and for the other database like [100, 2].
如果您有一个将处理两个参与数据库的分布式事务(Distributed Transaction)，您就可以用诸如[100,1]的描述符表示一个数据库，用诸如[100,2]的描述符表示另一数据库。
This is all built on top of CouchDB replication abilities, which I have found useful even outside of scaling distributed CouchDB databases.
这全部基于CouchDB的复制能力，我发现这种能力甚至在可伸缩分布式CouchDB数据库外部仍然有用。
Savepoints are also supported in distributed transactions as long as the transaction is dealing with logged databases and all the participating servers are at version 11.50.xc3 or higher.
分布式事务也支持保存点，前提是事务处理的是已登录数据库，并且所涉及的服务器的版本为11.50 .xC 3或更高版本。
For example, on distributed platforms, map-reduce coupled with in-memory databases; on System Z, co-deploy for access to enterprise data.
例如，在分布式平台中，使用映射-规约模式加上内存数据库；在System Z中，进行联合部署以实现对企业数据的访问。
Using Kylix 3 and DataSnap to build distributed applications based on data from the DB2 UDB databases offer greater security, performance, and easier maintenance.
通过使用Kylix3和DataSnap来构建基于来自DB 2UDB数据库中的数据的分布式应用程序，可以提供更大的安全性和更好的性能，同时也更易于维护。
You can have distributed queries inside the using clause that access databases on more than one server instance.
可在访问处于多个服务器实例中的数据库的子句中包含分布式查询。
Client mail databases were distributed evenly over 52 LVM file systems, each allocated across 5 volumes in a single LVM, providing 11.5 GB of useable space per file system.
客户机邮件数据库均匀分布于52个LVM文件系统，每一个分配都横跨lvm中的五个卷，为每一个文件系统提供11.5GB的可用空间。
Client mail databases were distributed evenly over a 52 LVM file system, each allocated across 5 volumes in a single LVM, providing 11.5 GB of useable space per file system.
客户机邮件数据库均匀分布于52个LVM文件系统，每一个分配都横跨单独lvm中的五个卷，为每一个文件系统提供11.5GB的可用空间。
The mail databases are distributed into four data directories, each holding 250 NSF files.
邮件数据库分布在四个数据目录中，每个数据目录存放250个NSF文件。
Distributed transactional support, so queue operations can participate in distributed transactions with other resource managers, such as SQL databases.
分布式事务支持，这样队列操作可以同其它资源管理器(如SQL数据库)一起参加分布式事务。
As a method of maintaining the data consistency of local databases in distributed environments, data synchronization is one of the key techniques.
数据同步作为维护分布式环境中各个节点数据库间数据一致性的方法，是分布式环境中的一项关键技术。
Although some technique and ways to query in centralized database system can also be used in distributed one, there are basic differences between them in terms of scale and factors of databases.
尽管在分布式处理中也使用某些集中式查询处理中的技术和方法，但就其问题的规模和优化的因素，都与集中式查询处理有质的不同。
Heterogeneous databases interoperation is related to distributed computing, so the paper studied CORBA technique.
异构数据库互操作研究涉及到分布式计算，为此，本文研究了CORBA技术。
Distributed multimedia systems support the integration and coordination of audio, video, text and numeric data originating from databases or high-speed networks.
分布式多媒体系统支持数据库中或网络中的声音、视频、文本和数字数据的整合与协同。
Distributed multimedia systems support the integration and coordination of audio, video, text and numeric data originating from databases or high-speed networks.
分布式多媒体系统支持数据库中或网络中的声音、视频、文本和数字数据的整合与协同。
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