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国家水资源管理系统数据库数据完整性约束设计------雷四华,韩 晴
      来源:南京水利水文自动化研究所    [大][中][小]

雷四华1,韩  2

 

1. 南京水利科学研究院,江苏 南京 210029

2. 河海大学,江苏 南京 211100

 

摘要:围绕国家水资源监控能力建设项目水资源管理系统数据库数据完整性约束设计方法,简要介绍数据库模型研究进展,完整约束在数据管理中的意义及其实现方法;较详细地分析国家水资源监控能力建设项目数据库数据完整性约束设计,与其它主键(实体)完整性约束设计方法比较,分析利弊,介绍国家水资源监控能力建设项目数据库关系表使用方法,并以实例验证说明。

关键词:国家水资源监控能力建设项目;数据库;完整性约束

 

 

Design and analysis of database integrity constraints in national water resources management system 

 

LEI Sihua1, HAN Qing2

 

(1.    Nanjing Hydraulic Research Institute, Nanjing 210029, China;

2. Hohai University, Nanjing 211100, China)

 

Abstract: This paper describes the design and analysis of database integrity constraints in the national water monitoring capacity building projects. Among them, it briefly introduces the study progress of the database model, the significance of integrity constraints in data management and its implementation method. It analyses the monitoring capacity of national water resources and designs database integrity of building project in detail. It gives the design method of other primary key (entity) integrity constraints and compares the advantages and disadvantages of analysis. It introduces the method of using the relational tables in the database of national water monitoring capacity building projects and illustrates with examples.

Key words: national water resources monitoring capacity building projects; database; integrity constraints

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