知识与财富的链接
多异构电力信息的集成与交换系统(以下简称异构集成系统)涉及到多个不同结构的信息系统数据库之间的数据交换.为了保证数据的一致性,往往需要在某一子系统数据更新时进行动态数据复制,将该子系统数据库的新增数据及时汇总到异构集成系统的数据库中去.针对这一问题,作者提出了基于Oracle数据库管理技术和Delphi面向对象的数据库编程技术的几种方案.此外,还指出了各种方案的适用范围和优缺点.
Multi-heterogeneous power system for information integration and exchange (abbreviated as heterogeneous integration system in the following) deals with data exchange among several databases of heterogeneous information system. In order to ensure the consistency of the data to be exchanged, it is always needed to replicate data dynamically while the data in a certain subsystem is renewed and the newly added data of the database in the subsystem should be collected to the database in heterogeneous integration system. For this purpose, several technical schemes based on the DBMS in Oracle and the object oriented database programming technique in Delphi are put forward. Besides, the merits and disadvantages of each scheme and its sphere of application are pointed out.
