对象一关系数据模型(object-relational data model)通过提供更加丰富的类型系统——包括复杂数据类型和面向对象——扩展了 … book.beifabook.com|基于 1 个网页 2. 对象关系数据模型 ...法中泛化和特化概念机制, 由此得到的数据模型就称为对象关系数据模型(object-relational data model) 。
To understand the role of objects in relational databases, one must first understand the object-oriented paradigm as it is used in object-oriented programming and pure object-oriented databases. The easiest way to do so is to begin with an example that has absolutely nothing to do with ...
object-relational data model 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 对象- 关系数据模型 翻译结果2复制译文编辑译文朗读译文返回顶部...
Object-relational data model 翻译结果5复制译文编辑译文朗读译文返回顶部 Object relations data model 相关内容 awrite down ten words about places write down ten words about places[translate] a在安全保密方面 In safe security aspect[translate] aDon't care about how far to go, but together can happy...
Object-Relational Database ModelNatural Language Question PatternsDomain specific question answering technique allows users to use natural language to express their queries so that users need not have the knowledge about the structures of the information source. Forsuch an application relational model is ...
In this chapter we looked at the evolution of data models and compared the object and relational data models. We looked at some of the difficulties involved in fitting object-oriented systems and relational databases together, and we looked at how some w
Object-Relational DatatypesThe concepts of binding and defining were introduced and discussed in Chapter 2, "OCI Programming Basics" and in Chapter 5, "Binding and Defining". This chapter provides additional information necessary for users who are developing object applications. The following topics are...
Microsoft.VisualStudio.Data.Services.RelationalObjectModel 命名空間參考 意見反應 介面展開表格 IVsDataColumn 表示描述表格式對象資料行的對應物件。 IVsDataExecutableObject 表示使用零個或多個參數執行程式代碼的對應物件。 IVsDataParameter 表示描述可執行物件參數的對應物件。 IVsDataScalarFunction 表示使用零個或...
and that the computer belongs to that employee only. A relational model would capture this using foreign keys either from the computer table to the employee table, or in the reverse direction. Using views, we can model the objects so that we have an object reference from the employee to the...
On the other hand, the temporal object relational Model has been successfully used to handle and maintain past, present and future information. In this paper, we propose a Novel conceptual design for temporal data warehouse (TDW) including bitemporal data. Our solution provides a transformation ...