| 一类查询算法的改进 |
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| 引用本文： | 金文.一类查询算法的改进[J].安徽师范大学学报(自然科学版),1995,18(1):78-81. |
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| 作者姓名： | 金文 |
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| 摘 要： | ＱＳＱＩ是演绎数据库中自顶向查询算法的一种。但由于计算过程中重复工作太多，因而降低了执行效率。本文提出了改进的方法，在一定上可减少迭代冗余。
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| 关 键 词： | 演绎数据库 广义查询 查询算法 数据库 |
An Improve to A Query Algorithm |
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| Jin Wen.An Improve to A Query Algorithm[J].Journal of Anhui Normal University(Natural Science Edition),1995,18(1):78-81. |
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| Authors: | Jin Wen |
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| Institution: | Department of Computer |
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| Abstract: | Iterative Query and Subquery Algorithm is one of the query algorithms of de-ductive database based on top-down method.Its performance is very poor level due tolarge redundancy in the iteration computation. The algorithm suggested in this papercan reduce,the computation redundancy derived by duplicate work to some extent. |
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