| 结构建模代数方法在关系模式设计中的实现 |
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| 引用本文： | 彭少勇,肖人彬.结构建模代数方法在关系模式设计中的实现[J].华中科技大学学报(自然科学版),2000,28(9):87-90. |
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| 作者姓名： | 彭少勇 肖人彬 |
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| 作者单位： | 1. 深圳迪科信息技术公司
2. 华中理工大学CAD中心 |
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| 基金项目： | 国家自然科学基金资助项目(79500007);国家高技术研究发展计划资助项目(863-511-10-0143). |
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| 摘 要： | 运用结构建模代数方法研究关系数据库设计中关系模式的规范分解,介绍了借助结构建模生成层次清晰的属性集结构的原理,分析了生成后的层次关系所蕴涵的关键字信息、关系模式信息和约束信息.由此给出了一种构造规范化的数据库关系模式的新方法.以炼油调度基础数据库为对象,演示了方法的具体实现,从而通过应用实例证实了该方法的简洁性和有效性.
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| 关 键 词： | 关系数据库 结构建模 关系模式 模式规范 函数依赖 |
| 文章编号： | 1000-8616(2000)09-0087-04 |
| 修稿时间： | 1998年7月15日 |
The Implementation of Normalization Design for Relation Patterns by the Algebraic Method of Structural Modeling |
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| Peng Shaoyong Xiao RenbinShenzhen Dike Information Technology Co.,Shenzhen ,China..The Implementation of Normalization Design for Relation Patterns by the Algebraic Method of Structural Modeling[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2000,28(9):87-90. |
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| Authors: | Peng Shaoyong Xiao RenbinShenzhen Dike Information Technology Co Shenzhen China |
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| Institution: | Peng Shaoyong Xiao RenbinShenzhen Dike Information Technology Co.,Shenzhen 518040,China. |
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| Abstract: | The normalization decomposition of relation patterns in the design of relation database is studied by the algebraic method of structural modeling. The principle which is to generate layered structure of attribute sets with the aid of structural modeling is introduced. The information of |
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| Keywords: | relation patterns as well as their constraints are analyzed which are implied by the generated layered relation A new method to constitute normalized relation patterns is given Taking the fundamental database for refining scheduling as an exa |
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