relational model
基本解释
- [计] 关系模型
英汉例句
- They are relational databases that provide the strengths of the relational model and its set processing.
这两种都是关系型的数据库，因而包含了关系模型及其集合处理的长处。 - A primary key is a special thing in the relational model: It must be unique to each record (row) of a table.
在关系模型中 主键是特殊的事物：它对于表的每个记录（行）必须是唯一的。 - Semi-structured data refers to data with some form of structure but not enough structure to fit gracefully into a relational model.
半结构化数据是指带有某些形式的结构但是结构还不足以完美地适合关系模型的数据。
双语例句
词组短语
- relational data model formalities 上一节
- nested relational DB model 嵌套关系数据库模型
- rough relational database model 关系数据库模型
- relational financing model 关系型融资模式
- relational grade model 关联度模型
短语
专业释义
- 关系模型
Object-oriented technology is the most popular softwaredevelopment method, and relational model is wide-used data model.
面向对象技术是当今最流行的软件开发方法，关系模型是最常用的一种数据模型。 - 关系模式
The algorithm process the foreign key constraints on the global schmal of the data integration system based on the relational model which use the global as view mapping.
该算法基于关系模式,采用全局视图映射方法,对带完整性约束的数据集成系统全局模式上定义的参照完整性约束进行处理。 - 关联式模型
- 关联模型
- 关连式模型
- 关联模型
The method for obtaining the information of connections between parts is presented using the interface of the platform. A relational model of assembly is employed to characterize the information of parts connections based on graph theory.
提出通过CAD 平台的接口获取子装配体内零件信息及约束关系的方法,建立了产品的子装配关联模型,并用图论中的关联图表征了该模型。管理学
- 关系模型