一个面向对象的查询语言实例

An Example of Object-Oriented Query Language

从支持面向对象、可表达能力、支持集合和可用性等四个方面来说明一个查询语言．每一个方面用查询判别式的例子以精确、清晰的查询符号方式进行了说明．

This paper illustrates a query language by four fields:support of object-oriented, expressive power, support of collections, and usability. Each field explains using an example queries written in concisely and clearly.