基于XML的历史数据归档与重构策略的研究与应用

Study on Historical Data Archiving and Reconstructing Strategy Based on XML

随着企业数据的爆炸式增长,数据库中大量的数据成为过期数据,但是这些数据并不是无用的,它们是数据处理和数据挖掘的重要对象,所以必须对其进行归档操作。将XML技术应用于数据库历史数据的归档和重构,并针对现有归档策略中的不足之处,提出了改进的数据归档和数据重构策略。同时,实现了基于层次有向图的数据库结构及数据信息映射为XML模式的算法,提出了分级管理策略,将归档数据存储在离线存储设备或者较低的存储设备中。

With the rapid growth of enterprise data,large numbers of detail data became the overdue data, but these data are not useless. The data is the important operation objects to the analysis management and the data mining application, so the data should be filed. This article applied the XML technology to the date archiving and data reconstruction. It is discovered that existent filing methods are incomplete, so many improved methods are proposed. In order to have better effective retrieval efficiency and improve the efficiency of the storage space ,a strategy of hierarchical management is proposed. History data in a low frequency are transferred to storage equipment at a lower frequency.