摘要
克拉玛依土壤详查数据库系统主要包括属性库和图形库两个部分。属性库是利用具有许多优点的关系型数据库Access建立和管理的,其中又分解为剖面总体属性、盐分属性、养分属性、水分物理性质属性四种关系,关系之间靠关键字联结。图形数据存放在Auto和Mapinfo中形成图形库,通过文件转换与OLE连接,使图形本身成为Access的一部分,利用Access的完整性控制监测整个系统。
The data base system of soil investigation in detail of Kelamayi mainly includes two setions, attribute base and graphbase. The attribute base is established and managed by using relation pattern data base Access that has many advantages, and it is decomposed into fourrelations, which are soil profile overall attribute, salt attribute, nutrient attributeand moisture physical property attribute. They are bound by
出处
《干旱地区农业研究》
CSCD
北大核心
1998年第4期122-125,共4页
Agricultural Research in the Arid Areas
基金
国家计委资助
关键词
土壤详查
属性库
图形库
克拉玛依
干旱区
The graph data are deposited in Auto and Mapinfo to form the graph base. Theyjoin with OLE together through file changing to make the graph as a part of Access, and then the integrity of Access can be used to control and monitor the whole system. Key