实体DAC是德尔福的 ORM，支持 LINQ。它提供了一个强大的框架，允许执行数据库对象到 Delphi 类的对象关系映射，完全支持封装、继承、多态性和其他 OOP 功能。要从数据库中检索数据，LINQ 用作数据库独立的查询引擎。 此外，还有一个功能丰富的 ORM 建模工具 - 实体开发人员，它允许直观地创建和编辑 ORM 模型，并通过此模型自动生成 Delphi 实体类。 主要特点： * 数据库第一，模型-第一代码-第一开发。用户在使用实体DAC开发应用程序时能够使用所有三种方式。 * 具有代码生成功能的可视化 ORM 模型设计器。实体开发人员允许直观地创建和编辑 ORM 模型，而无需键入一行 XML 代码或手动描述 Delphi 代码中的类属性。它支持创建各种映射，如表拆分、将实体映射到多个表、复杂类型、继承层次结构等。 * LINQ 查询。在开发应用程序时使用 ORM 不仅必须加快应用程序本身的开发，还必须统一应用程序代码，使应用程序独立于开发应用程序的 SQL 数据库的具体细节和语法，从而允许无需费力地支持应用程序中的多个数据库。 * 类映射。数据库表与 Delphi 类的对象关系映射不仅可以执行到从基本 TEntity 类继承的类，还可以执行从 TObject 中继承的自定义类。 * 实体查询缓存。为了提高应用程序性能，EntityDAC 允许缓存元数据、从数据库加载的所有实体、LINQ 查询等等。
版本历史记录
- 版本 2.1 发布于 2018-11-30
RAD 工作室 10.3 里约支持 - 版本 1.6 发布于 2017-04-13
RAD 工作室 10.2 东京支持 - 版本 1.1 发布于 2014-08-11
软件信息
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