Multi-Path Index Method for The Efficient Retrieval of XML Data

摘要

The present invention relates to a multipath index method for efficiently searching XML data, which assigns a unique path identifier to each single path included in an extended path expression, stores an index key value and a path identifier in combination, The present invention provides a multiple index method that simultaneously supports searching for a plurality of paths and index function for a single path.;The present invention improves the search performance of a query represented by an extended path expression in a multipath index, and index management is facilitated by integrally providing an index for a plurality of paths. In addition, it is possible to provide a search function for each path as well as an extension path. In addition, the method using the path identifier can be easily applied to the existing single path indexing technique, and the B + It is excellent in practicality.