一个数据源可以四像关系型数据库管理体统这样的数据库,可以是面向对象型的数据库管理系统,可以是XML文档,也可以是简单文件等等.
A data source could be a database such as an RDBMS, OODBMS, XML repository, flat file system, and so forth.
因为ActiveRecord的大部分代码存在的原因是对象和关系型数据库的不匹配现象，许多ActiveRecord的代码都将变得毫无必要。
Since much of ActiveRecord is there because of the impedance mismatch between objects and relational databases, a lot of ActiveRecord will be unnecessary.
Django提供了自己的对象关系型数据映射组件(object - relationalmapper,orm)库，它可以通过Python对象接口支持动态数据库访问。
Django comes with its own object-relational mapper (ORM) library that supports dynamic database access through a Python object interface.
查询语法是面向对象的，并且没有了表、索引或其他典型的对象关系型数据库的概念。
The query syntax is object oriented and there is no concept of tables, indices, or other typical relational-database concepts. For example, the following query returns all StockBean objects in a list.
本文介绍了对象关系型数据库的技术要点，并从实际出发来讨论它的应用。
Introduces the main points of technology on object relation database and discusses its application basing on practical application.
使用对象关系型数据库来一体化存储和管理海量的GIS基础图形数据和属性数据是近年来GIS领域研究的一项重点内容。
It is an important research content of GIS fields in the recent years to store and manage mass GIS basic graphics data and attribute data using object-relation database.
该模型的作用对象是关系型数据库。
Relational database is the object processed by the DSS model.
持久化框架较好地解决了关系型数据库的对象持久化问题，对象关系映射是持久化框架的核心内容。
The persistence framework solves the problem of object persistence in relational databases. Object relational mapping is the core of persistence framework.
论文在自主开发的空间数据库VISTA的基础上针对特定的对象-关系型数据结构，提出了相应的访问控制方法。
This paper describes the access control method for the specific relational-object data structure on the base of the self-developed spatial database, VISTA.
通过实体关系映射工具将关系型数据库的数据映射成对象，实现了以面向对象方式操作数据库。
Through entity-relational mapping tool to relational database mapping data into a target to achieve the object-oriented manner in order to operate the database.
该系统是对象关系型数据库管理系统OSCAR客户端的重要组成部分，分为两部分实现：预处理模块和ESQL运行库。
The system plays a crucial role in the client part of OSCAR, an object relational database management system. It includes two components: preprocess module and ESQL runtime library.
该系统是对象关系型数据库管理系统OSCAR客户端的重要组成部分，分为两部分实现：预处理模块和ESQL运行库。
The system plays a crucial role in the client part of OSCAR, an object relational database management system. It includes two components: preprocess module and ESQL runtime library.
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