Show simple item record

dc.contributor.author嵇媛
dc.contributor.author肖华锋
dc.date.accessioned2017-11-14T02:38:35Z
dc.date.available2017-11-14T02:38:35Z
dc.date.issued2005-07-25
dc.identifier.citation电力自动化设备,2005,(07):67-70
dc.identifier.issn1006-6047
dc.identifier.otherDLZS200507016
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/153514
dc.description.abstract对现阶段远动系统中的数据存取方面存在的问题进行一次全新的分析。具体问题包括:实时数据库中的信号对象存储到关系型数据库时需要经过“关系化过程”影响实时性能;历史数据库数据量的增长影响查询速度;数据转存后,系统数据容易产生分析断面,无法得到长时段、全面的分析数据。对Oracle所支持对象型数据表、分区技术、分区索引和函数索引技术作了简要介绍。利用实例说明Oracle对于解决以上问题的应用情况。
dc.description.abstractAn analysis of data accessing problems existing in telecontrol system is presented,which are:the ‘relation course’ during storing the signal objects of real,time database to the relational da,tabase influences the real,time performance;the growth of the data quantity of the historical database influences the inquiry speed;the analyzed section of systematic data caused by data unloading makes unable to get the long period and full , scale analysis data. The object ,type data list,partition technology,partition index technology and function index technology supported by Oracle are introduced briefly. The instance illustrates the application of Oracle to solve these problems.
dc.language.isozh_CN
dc.subject远动系统
dc.subjectOracle数据库
dc.subject面向对象
dc.subject分区存储
dc.subject对象型
dc.subjecttelecontrol system
dc.subjectOracle database
dc.subjectobject,oriented
dc.subjectpartitioned storage
dc.subjectobject,type
dc.titleOracle数据库在远动系统中的应用探索
dc.title.alternativeDiscussion of Oracle database application in telecontrol system
dc.typeArticle


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record