基于FODE算法的实化视图增量计算方法的研究和实现

Research and Implementation of Computing the Increment of Materialized View Based on FODE Algorithm

提出一个新的视图增量计算方法,以进一步改善现有的增量计算方法和提高增量计算方法的效率。该方法主要是在基于部分补偿的增量计算方法的基础上,减少增量计算过程中对数据库的访问时间,从而降低整个增量计算方法的开销。

Proposes a new method to improve the original algorithm＇s efficiency. This method is based on the PCA algorithm, it can decrease the cost of computing the incremental view data by reducing the accessing to the relations during the computation.