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.
基于XML的异构数据库集成的关键是建立数据库模式和XML模式之间的映射关系。
The key to realize integration of heterogeneous databases on XML is to establish a mapping approach between databases schema and XML schema.
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.
本文以XML在数据集成和交换上的优势，提出了一个基于XML的异构数据库集成中间件的解决方案。
According to the edge of XML in the data integration and exchange, the paper resents a XML-based heterogeneous database integration middleware.
由于数据库异构现象越来越普遍，研究异构数据库集成无论在理论还是实际应用上都具有非常重要的意义。
By both practical and theoretical, research in heterogeneous database integration makes important sense for more and more heterogeneous databases.
本文基于这两个关键问题，提出了一种基于JMS和XML的异构数据库集成模型，并给出了关键问题的实现。
Based on these, a model of integration of heterogeneous database based on JMS and XML is developed, and the realization of its key problems is given.
重点分析了XML与关系数据库之间的映射，提出了一种以xml作为中间件的异构数据库集成方案，并对其中的主要环节给出了具体实现。
It analyzes the mapping between the RDBS and XML, then proposes a new schema of heterogeneous database integration based on XML and presents implementation method of main parts in details.
来自各种异构应用数据库的数据被复制和集成到拥有正规数据模式的单个企业数据库中。
Data from heterogeneous application databases is replicated and integrated in an enterprise database with a canonical data schema.
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.
异构数据集成是数据库领域研究的热点问题。
Integration of heterogeneous database is focus in database field.
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.
采用数据库和工程数据管理技术（PDM）实现电站异构环境下的信息集成。
The information integration for the LSPP heterogeneous environment is implemented by use of the technologies of database and product data management (PDM).
本文分析阐述了SB -CIMS异构数据库信息集成的设计原理与实现技术，并对其功能特点及算法作了概要介绍。
This paper summarizes the design principle and technology on information integration of isomerous database in SB CIMS, offers a brief introduction to its function and algorithm.
基于本体的异构数据库的语义集成，首先就是要对本体进行构建。本体构建质量的高低直接影响了进一步的应用和研究效果。
The first step of Ontology-based semantic integration of heterogeneous database is to build ontology. The quality of ontology has a direct impact on further application and research.
本文结合当前企业信息集成技术，提出了一种统一的异构数据源集成模型——基于XML的虚拟数据库模型。
Combined with enterprise information integration technology. this article advanced a standard integration of heterogeneous data sources that called virtual database model based on XML.
采用数据库和工程数据管理技术实现核电厂异构环境下的信息集成。
The information integration for the NPP heterogeneous environment is implemented by the use of technologies of database and product data management (PDM).
根据防汛综合数据库的异构、分布特征，提出集成防汛综合数据库的元数据方法。
The metadata method for Flood Control General DataBase (FCGDB) integration is proposed in accordance with the distributed and heterogeneous characteristics of FCGDB.
提出了用PB的ODBC接口访问数据库的原理和机制，为异构数据库的集成提供了一种基于ODBC中间件的解决方案。
And also by using the principle and mechanism of ODBC interface technique PB to access the database, this paper provides a solution based on ODBC middleware for heterogeneous database integration.
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.
系统实现了分布式异构、跨平台，支持多数据库，同时充分考虑到了与其他系统的集成，可较好地支持过程自动化及其管理。
The system is distributed, cross-platform and supports multi-database, in the meantime it can integrate with other systems, so it can support process automation and management.
根据异构数据集成的需要。提出了利用XML技术集成异构数据库数据源的一个框架。
Since the need, in the paper, a frame integrating data from heterogeneous database based on XML is designed.
基于XML的数据集成应用指屏蔽底层分布式、异构数据库的差异，为用户提供统一的XML数据展示视图和数据操作接口。
The XML-based data integration application architecture is analyzed which provides a uniform display view and manipulated interface of XML data for users.
首先研究了数据库中间件在异构集成应用中存在的必要性，介绍了数据库中间件的理论知识、特点和常用技术。
First researched the essential reason of database middleware in the application of heterogeneous integration, introduced the theory, characteristics and common technique of database middleware.
首先研究了数据库中间件在异构集成应用中存在的必要性，介绍了数据库中间件的理论知识、特点和常用技术。
First researched the essential reason of database middleware in the application of heterogeneous integration, introduced the theory, characteristics and common technique of database middleware.
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