An Efficient XML Index Technique with Relative Position Coordinate

Abstract:- Recently, a lot of index techniques for storing and querying XML document have been studied so far and many researches of them used coordinate-based methods. But update operation and query processing to express structural relations among elements, attributes and texts make a large burden. In this paper, we propose an efficient index technique with Relative Position Coordinate (RPC). It supports containment queries using SQL statements and data management operations. It does not cause serious performance degradations even if there are frequent update operations because it maintains relative relationship of XML tree. Overall, the performance could be improved by reduction of the number of times for traversing nodes