主键约束在数字化前兆数据服务软件中的关键运用

The pivotal using of Primary key in EPDS

数字化前兆数据库是一个分布式网络数据库SQLServer,数据库的建成运用为预报人员的日常数据分析提供了一个准确的、完整的资源平台。为考虑数据库设计完整性规则 ,本文着重讲述建立两套前兆数据库的过程中 ,主键约束在数字化前兆数据服务软件EPDS的建库及入库中起的重要作用。

Digital data-base of premonitor is a distributed network data-base,its manage offers an exact and integrated resource flat to investigators' analysis。To think over integrated rule of data-base,this text stressed in telling of two data-bases' founding,from the using of EPDS we can see primary key reacted on founding and input of data.