vdb meaning in English
德国球类俱乐部协会
虚拟数据库
Examples
- The aim of the staff organisations , the bib , the vocational association for library information , and the vdb , the association of german librarians , is to defend and to represent the professional interests of librarians and library staff publicly
是图书馆工作人员成立的两个联合组织，对外代表并维护图书馆工作人员的利益，同时向业界提供讨论和交流意见的园地。德国图书馆协会 - Mobile agent , which originates from distributed - system research area and indicates the future of internet , is the result of gradually developed distributed - system technology . nevertheless , as a new concept , the mobile agent is probed both home and abroad . hence . there ' s neither regular model nor detailed description of agent . taking it for granted , this essy aims at the availiblity of mobile agent on the base of the mobility and autonomy of it . this essy then describes the " agent - based and fully materialized virtual database in the electronical book market system " , in which the author plays an importmant role . as regard to this sysetm , a uniform mirror database ( book market ) of all sourcedatabases is established and , with the help of the mobile agent , it ensures more instant access to diversified book information the customer needed . when some data is changed in the source termiante , the mobile agent then carries modification informations and moves from the source terminate to the mirror terminate , and , by doing relevant operations , the diferrent databases in different ends then become consistent
本文描述了笔者参与开发的一个系统： “基于移动agent的全具象vdb电子书市系统” 。本系统以移动agent为基础，通过建立对各个数据源(书店)数据库的一个总的镜像数据库(书市)来实现客户数据查询的即时性和快速性。每个源端数据库一经修改，由移动agent携带相关修改信息移动到镜像端对数据库进行相应操作，从而保证源端数据库与镜像端数据库的一致。