动态数据复制技术在供电企业Intranet中的应用

Application of the Dynamic Data Replication Technique in the Intranet of Power supply Enterprise

供电企业内部的多异构电力信息系统 (以下简称异构信息系统 )由于要获取多个不同结构的信息系统的信息 ,必然涉及到与多个系统的数据库交换数据 ,因此动态的复制其他系统数据库的新增数据成为构建异构信息系统的基础。本文针对这一问题 ,主要利用 Oracle数据库的强大功能和 Delphi面向对象的数据库编程技术提出了解决这一问题的几种方案。各种方案都有其适用范围和优缺点 ,应该具体情况具体分析 ,选择合适的方案来解决实际问题。

The fact that multiple isomer information systems (called for short the isomer information system) coexist in power supply enterprises makes the dynamic data replication from one information system to another necessary. As a result, the dynamic data replication is the issue to be dealt with first for a new isomer information system to be constructed for power supply enterprises. Several schemes for dynamic data replication are designed base on Oracle database and the Delphi object-oriented database in this paper. Different scheme has different advantages and disadvantages, and is applicable for different occasion. It is suggested that the scheme for dynamic data replication should be selected based on the analysis of current information systems.