The recursive query processing is, recently, a generally interested problem in database system field.
递归查询处理是近年来数据库界普遍关心的问题。
The linear recursive query computation problem is a subset of database recursive query computation problem.
本文针对数据库递归查询计算问题的一个子类——线性递归查询计算问题进行了讨论。
A new method of tree scheme knowledge representation is proposed. It enables the recursive query process to consult the states of the extensional database, making the algorithm more efficient.
提出了一种树形知识表示方法，使递归查询可参考事实库状态，从而获得更高效的算法。
The paper introduces an Extended Relational Model Database System ERDB and a GIS based on ERDB. We mainly discuss the problems of expression of topology in GIS and recursive query.
本文介绍了一个扩展关系模型数据库系统ERDB和在该系统之上开发的一个GIS系统。
The paper introduces an Extended Relational Model Database System ERDB and a GIS based on ERDB. We mainly discuss the problems of expression of topology in GIS and recursive query.
本文介绍了一个扩展关系模型数据库系统ERDB和在该系统之上开发的一个GIS系统。
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