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.
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.
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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