An Algorithm for Incremental Maintenance of Materialized XPath View

摘要：

Cached materialized view has lots of benefits, but it has inconsis tency problem when the data source is modified. This paper proposes an incre mental maintenance algorithm IMA to implement incremental maintenance of materialized XPath view. The characteristics of IMA are: (1) It can establish an incremental maintenance program automatically; (2) The incremental mainte nance program is simple and its function is reassembling the materialized XPath view to obtain a consistent view; (3) The incremental maintenance program is written in XQuery language and can be executed by any XQuery engine; (4) The only auxiliary data used to maintain the materialized XPath view is the in cremental maintenance program and its size cost is very small. Experiments have shown that this approach outperforms view recomputation.

关键词： Incremental Maintenance Materialized XPath View XPath XQuery

作者: Xueyun Jin Husheng Liao

作者单位: College of Computer Science and Technology, Beijing University of Technology, Pingleyuan 100＃, Chaoyang District, Beijing 100124, China

会议类型: 国际会议

会议名称: 11th International Conference,WAIM 2010(第十一届网络时代管理国际会议)

会议地点: 九寨沟

会议语种:英文

页码: 513-524

在线出版日期: 2010-07-14（万方平台首次上网日期，不代表论文的发表时间）