本文研究了异构数据库互操作关键技术。
The paper studied key technique of heterogeneous databases interoperation.
快速从异构数据库开发开发数据库或测试数据库。
Developing development or test databases from heterogeneous databases quickly.
数据库服务器用来存放本地数据和链接分布式异构数据库。
The local data and the distributed heterogeneous database lie in database server.
全局查询的分解与优化是异构数据库的集成中许多难题之一。
Decomposition and optimization of global query is one of hard problems in heterogeneous database integration.
强大的数据操作功能是异构数据库互操作系统所必不可少的。
The powerful data operation functions are necessary for a heterogeneous database interoperation system.
数据连接组件主要进行异构数据库的读取和XML数据的生成。
Isomerization unit data connectivity components for the main database for retrieval and XML data generation.
文中介绍了分布异构数据库的特征和连接技术，以及数据交换技术。
It introduces the characteristic, connection and transfer technology about the distributed heterogeneous database in this article.
应用了ASP对COM组件的支持，实现了异构数据库的联合使用。
With the ASP COM(component object model), the united use of heterogenous database has been possible in the system.
在信息系统开发过程中，异构数据库间数据转移是个非常实际的问题。
In the course of the development of information system, the data transfer between different structure database is an actual problem.
论文讨论了异构数据库集成的相关理论、传统集成方法及其存在的问题。
The thesis discusses the related theory of integrating the heterogeneous database, the traditional integrating means and problems.
从分布异构数据库中提取有用数据以及数据整合，是信用系统的核心技术。
Extracting and integrating available data form distributed heterogeneous database, which is the pivotal technology.
传统异构数据库间的数据转换工具存在受平台限制、容易产生冗余等不足。
Traditional data transformation tools are constrained by the platform and easily lead to data redundancy.
本文论述了异构数据库互操作的概念和目标，分析了异构数据库互操作策略。
The paper discussed heterogeneous databases interoperation concept and target and analyzed its strategy.
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。
Heterogeneous databases interoperation is related to distributed computing, so the paper studied CORBA technique.
中间件技术是解决异构数据库问题较理想的方案，这种方法需要一种交互媒介。
Middleware technique is the better perfect precept of solving heterogeneous database which needs a sort of mutual medium.
因此，在软件进一步开发或系统转换中，异构数据库间的转换问题显得尤为突出。
Therefore, the conversion problem between heterogeneous databases is particularly prominent when the software are further developed or the system is conversed.
在确定异构数据库复制研究的重点方向以后，本文提出了异构数据库异步复制模型。
After deciding on the key research area of heterogeneous database replication, the dissertation has proposed a asynchronous replication model for heterogeneous database.
利用XML技术建立异构数据库集成模型的关键是建立XML与数据库之间的转换关系。
The key point that exploits XML to establish the isomerous database integration model, is to set up the conversion relationship between XML and database.
通过XML文档和数据库模式之间的模板映射，较好地实现了异构数据库之间的透明互操作；
Transparent access between heterogeneous databases has been achieved by templates mapping between XML documents and database schemas.
该方案实现了异构数据库的透明访问和联合查询，为企业信息系统集成提供了一种技术方法。
It achieves transparent access and unified query, and provided one technical method for the enterprise information system integration.
然后，就系统的三个难点问题——异常处理、安全权限控制和异构数据库访问进行了深入的研究。
Then, this paper deeply investigated the three difficult problems of the system, such as exception handling, security right controlling and heterogeneous database access.
如何屏蔽分布在不同站点上的异构数据库之间的差异，是实现多个数据库互访要解决的首要问题。
How to shield the difference among the distributed heterogeneous database is the primary problem to be solved to implement the mutual visiting among the multiple databases.
在数据库异构程度不断加深的情况下，异构数据库复制技术的研究已成为数据库复制研究的重点。
With the growing of database's heterogeneities, the replication technology of heterogeneous database has become a key area of database replication research.
重点讨论了原有系统集成到新系统中，实现了分布式异构数据库在J2EE平台下的综合查询问题。
The realization of integral query of distributed heterogeneous database on the J2EE platform has been stressed while the original system has been integrated to the new system.
封装了ODBC和OCI的通用数据库接口，可以实现异构数据库的互连，同时可以提高系统的性能。
Encapsulated with ODBC and OCI, the UDB CLI can not only interconnect the heterogeneous database but also improve the performance of the system.
所以如何实现异构数据库之间信息的转换和如何实现转换结果的跨地区的传输成为本课题的关键部分。
Therefore, how to construct the exchanging platform of heterogeneous databases and how to communicate the result of transforming data among different place are the key technology.
随着数据库实践中基于分布、异构问题的进一步增多，异构数据库互访的实现需要进一步完善和更新。
The database applications based on distributed and heterogeneous problems are increasing rapidly, and the architecture of inter-access of heterogeneous database needs to be perfected and updated.
随着数据库实践中基于分布、异构问题的进一步增多，异构数据库互访的实现需要进一步完善和更新。
The database applications based on distributed and heterogeneous problems are increasing rapidly, and the architecture of inter-access of heterogeneous database needs to be perfected and updated.
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