relational model
基本解釋
- [計] 關系模型
英漢例句
- They are relational databases that provide the strengths of the relational model and its set processing.
這兩種都是關系型的數據庫,因而包含了關系模型及其集合處理的長處。 - A primary key is a special thing in the relational model: It must be unique to each record (row) of a table.
在關系模型中 主鍵是特殊的事物:它對于表的每個記錄(行)必須是唯一的。 - Semi-structured data refers to data with some form of structure but not enough structure to fit gracefully into a relational model.
半結構化數據是指帶有某些形式的結構但是結構還不足以完美地適合關系模型的數據。
雙語例句
詞組短語
- relational data model formalities 上一節(jié)
- nested relational DB model 嵌套關系數據庫模型
- rough relational database model 關系數據庫模型
- relational financing model 關系型融資模式
- relational grade model 關聯(lián)度模型
短語
專業(yè)釋義
- 關系模型
Object-oriented technology is the most popular softwaredevelopment method, and relational model is wide-used data model.
面向對象技術是當今最流行的軟件開發(fā)方法,關系模型是最常用的一種數據模型。 - 關系模式
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.
該算法基于關系模式,采用全局視圖映射方法,對帶完整性約束的數據集成系統(tǒng)全局模式上定義的參照完整性約束進行處理。 - 關聯(lián)式模型
- 關聯(lián)模型
- 關連式模型
- 關聯(lián)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.
提出通過CAD 平臺的接口獲取子裝配體內零件信息及約束關系的方法,建立了產品的子裝配關聯(lián)模型,并用圖論中的關聯(lián)圖表征了該模型。管理學
- 關系模型