SQL语言的面向对象功能的扩展
THE EXTENSION OF OBJECT-ORIENTED FUNCTIONS OF SQL
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摘要: 本文首先介绍了数据库语言ＯＳＱＬ的设计思想。以面向对象的数据模型为理论依据，在标准关系数据库语言ＳＱＬ的基础上扩充了面向对象功能，设计出了一个全新的面向对象数据库语言ＯＳＱＬ。该语言既保留了ＳＱＬ原有的特性，又能支持面向对象、对象分布、对象主动行为及多媒体复杂信息的管理，是一个成功的分布式面向对象数据库语言。Abstract: This paper first introduces the design idea of OODB language OSQL. Basedon the standard relational database language SQL, its object-oriented functions are extended and a new OODB language OSQL is designed. It not only preserves the characteristics of SQL but also supports object-orientation, distributed object, object activityand multimedia information management. It is an effective distributed OODB language.
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