面向对象数据库中循环查询处理技术的研究

RESEARCH ON A CYCLIC QUERY PROCESSING TECHNIQUE IN OBJECT ORIENTED DATABASE SYSTEMS

循环查询是一种比较特殊的查询．针对面向对象数据库及其循环查询的特点，以ＯＤＭＧ－９３国际标准为基础，提出了一种实用有效的循环查询处理策略，并对其中的循环成分识别算法和循环成分处理算法进行了分析讨论．实际应用表明，该策略能有效地处理ＯＯＤＢ中的循环查询．

Cyclic query is a kind of special query.According to the features of object oriented database and cyclic query,and based on the ODMG 93 standard,a practical efficient cyclic query processing strategy is proposed in the paper.The cyclic component distinguishing algorithm and the cyclic component processing algorithm are analysed.The application shows that the strategy can process the cyclic query in OODB efficiently.