relation data base meaning in English
关系数据库
Examples
- In a relation data base , the number of tuples in a relation
关系数据库中,一个关系的元组数目。 - The characteristics and the afection of scada is studied in this thesis . the develepment and actuality of scada data base systems are studied , too . by the theory of data base , the author reserches the design theory for relation data base . by a direct method , the author devises a relation data base for scada
本文分析了scada系统的特点及其对电力系统产生的影响，讨论了scada系统数据库的发展及现状。在分析数据库技术的基础上，对关系型数据库的设计理论进行研究。依据直观设计法对scada系统历史数据库结构进行设计。 - The proposition of the data warehouse is taking development at full speed of relation data base , undertaking the parallel processing of and distributed technology as foundation , solve possession a large amount of data but useful information poor ( data rich - information poor ) comprehensive solution that information technology exist in development online analysis processing and go on technology that analyses to multidimensional data , from analyses it way obtain analysis datum of aid decision that user need from various visual angles
数据仓库的提出是以关系数据库、并行处理和分布式技术的飞速发展为基础的，是解决信息技术在发展中存在的拥有大量数据但有用信息贫乏( datarich - informationpoor )的综合解决方案。联机分析处理是对多维数据进行分析的技术，它从多视角分析途径获取用户所需的辅助决策的分析数据。 - The third generation of scada , based on the technology of distributing computer net and relation data base , could realize the large - scale internet connection , which is currently applied in data collection , surveillance control and processing control in the fields of electric power system , water supply system , petroleum and chemical industry etc . the fourth generation of scada would adopt the internet technology , object oriented technology , neural network as well as java technology as its main development tendency , aiming at enlarging the integration of scada and other systems , which could finally meet the needs of business management and integrated security economic circulation
现在的基于分布式计算机网络以及关系数据库技术的能够实现大范围联网的第三代scada系统被广泛应用于电力系统、给水系统、石油、化工等领域的数据采集与监视控制以及过程控制等诸多领域。第四代scada系统的主要发展趋势是采用internet技术、面向对象技术、神经网络技术以及java技术等技术，继续扩大scada系统与其它系统的集成，综合安全经济运行以及商业化运营的需要。