Object-relational mapping for creating models
用于创建模型的对象关系映射
An object-relational mapping (ORM) case scenario.
对象-关系映射(ORM)案例场景。
Create the XML metadata for the object-relational mapping.
为对象-关系映射创建XM l元数据。
Needed the object-relational mapping possible through CMP beans.
需要通过CMP组件来实现与对象有关的映射。
See Resources for more information on issues around object-relational mapping.
有关对象关系映射的问题的更多信息，请参见参考资料。
Either way, you have to write or generate code to do the object-relational mapping.
无论采取哪种方式，都必须编写或生成代码来进行对象关系映射。
However, for many years, many popular DBMSs have been hybrid object-relational.
不过，许多年来，很多流行的DBMS都是对象和关系的混合体。
Active Record is an object-relational mapping (ORM) that follows a standard ORM model.
ActiveRecord是遵照了标准的or m模型的对象关系映射(object - relational mapping,ORM)。
The object Contact is the ActiveRecord object-relational mapping that the model provides.
对象Contact是模型所提供的ActiveRecord对象-关系映射。
Please note that this article will not go into the general topic of object-relational mapping.
请注意，本文将不深入讨论对象-关系映射这一一般性的主题。
Gone are the days of writing your own object-relational mapping (ORM), logging, or testing framework.
手动编写对象关系映射(ORM)、日志或测试框架的时代已经一去不复返。
It does not store documents as plain text and does not map XML to relational or object-relational tables.
它不将文档存储为纯文本，也不将XML映射到关系或对象关系表。
The query syntax is part of Erlang itself, while the data model is akin to an object-relational DBMS.
查询语法是Erlang的一部分，数据模型类似于对象-关系数据库管理系统。
Rails will never be a tool for enterprise integration, object-relational mapping, or full-stack Web services.
Rails将永远不会成为用于企业集成、对象关系映射或全堆栈web服务的工具。
Most object-relational mapping frameworks introduce redundancy into your software (no, not the good kind).
大多数面向关系的映射框架都会为你的软件（不，不是指优秀的软件）带来一些冗余。
I'll start by describing what an object-relational mapper (ORM) is and how to create a one-to-many relationship.
我将首先介绍什么是对象关系映射器(object - relationalmapper,ORM)，以及如何创建一对多关系。
The service persists order information in a relational database using an object-relational mapping framework.
服务使用ORM框架将订单信息持久化到关系数据库里。
Hibernate is one of most popular object-relational mapping (ORM) engines providing data persistence and query services.
Hibernate是最流行的对象关系映射(ORM)引擎之一，它提供了数据持久化和查询服务。
You can think of XMLBeans as an object-relational (or) mapper — but for XML files rather than relational databases.
可以将XMLBeans看作对象-关系(OR)映射器，但这是针对XML文件而非关系数据库而言的。
It goes further by mentioning that it could be any type of database: relational (object-relational) or non-relational.
并且还进一步提到可以是任何类型的数据库：关系(对象-关系)或非关系的。
Object-relational mapping is the best solution when you have a legacy schema, perhaps not defined with an object model in mind.
对象关系映射是使用遗留模式(可能定义时没有考虑对象模型)时的最佳解决方案。
For example, a team working on object-relational data mapping may be using a modeling tool with a set of MDA transformations.
例如，一个进行关于对象的数据映射的团队可能会利用建模工具进行一组mda转换。
Django comes with its own object-relational mapper (ORM) library that supports dynamic database access through a Python object interface.
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。
Rails USES the ActiveRecord library to handle database access and object-relational mapping between database tables and Ruby object models.
Rails使用activerecord库处理数据库访问及数据库表与Ruby对象模型之间的对象关系映射。
Follows the named-query style, targeted to match or exceed the capabilities of existing object-relational mappers and persistence solutions.
遵从命名查询的风格，目标是等同或超过现有对象-关系映射器和持久化解决方案的功能。
To deal with this possibility, make sure you use versioning if you are using an object-relational mapping (ORM) framework with this transaction strategy.
为了应对可能的这种情况，如果在此事务策略中使用对象关系映射(ORM)框架，则应确保使用了版本验证功能。
Consider an example where a DBA knows the problem is a poor-performing query, but that query was generated by a framework, using an object-relational mapping technology.
考虑这样一个示例：DBA知道问题根源是查询的性能较差，但此查询是由框架生成的，使用了对象关系映射技术。
Mapping one worldview to the other is called object-relational mapping, and that mapping is rarely straightforward, since you need to reconcile two conflicting organizational strategies.
将一种世界观映射为另一种世界观称为对象？关系映射，而这种映射很少是直接了当的，因为需要协调两种冲突的组织性策略。
There is an object relational mapper out there that is a hidden gem.
那里有一个对象关系映射程序，它是一块隐藏的宝石。
The “bottom up" approach assumes you already have database table schema and need to develop an object layer and object relational mapping from the table schema.
“自下而上”方法假设已经有数据库表模式，而需要根据表模式开发一个对象层和对象关系映射。
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