In this thesis,Guangzhou electromechanical mechanic school MIS is researched, combined with the theories of data model,function dependence and relation standardizat-ion, system databases and standardized data tables are devised.
本文以广州机电技工学校的管理信息系统为研究对象,结合数据模型、函数依赖和关系规范化设计理论,进行了系统数据库和规范化数据表的设计。
参考来源 - 基于C/S结构的校园管理信息系统开发与应用研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Least Function Dependence is the basis of decomposing Database pattern.
最小函数依赖是数据库模式分解的基础。
This paper brings forward a method of graphical standardization of relation schema based on function dependence diagram.
在函数依赖的范畴内对关系模型的规范化理论及其运用问题进行了探讨 。
Three important conceptions-function dependence, normalization and dissolution of data scheme-are analysed. Their directive action for design of relational data model is pointed out as well.
避开复杂繁琐的数学推导,分析了关系数据库理论中的函数依赖,数据模式的规范化及其分解这三个重要概念,指出了它们对关系数据模型设计的指导作用。
This property of cells in culture is called anchorage dependence - that the cell needs to be anchored to a surface in order to function properly.
体外培养细胞的这种特性,称为贴壁依赖性--,意思是细胞必须固定在,某个表面上才能正常生长
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