Catalogue Research Of XML Database

With the rapid development of Web Service, XML as the cornerstone of the SOA,the number of times in the data exchange and storage areas are becoming morefrequent, causing it to become the de facto data exchange standard XML technology isdestined to have a bright future. In today’s Internet world, the amount of data in XMLformat with the increasingly widespread application of XML technology to the indexlevel growth, such a question in front of us, that is the problem of XML data storageand management. How to efficiently store and manage vast amounts of XML data hasbecome the problems to be solved. One of the important content of the XML datastorage and management research query processing, XML database technology, thekey is how to create a suitable index for XML data.XML data indexing strategies and characteristics in detail, based on XML datastorage and management of deep-seated, and contact the technical characteristics ofthis search engine on the Internet show the combined structure indexing and full-textindexing joint index technology, which improved inverted index search enginetechnology and the Structured Query method of combining. Which suitable forencoding mechanism based on the B+tree indexing, XML data nodes using the B+tree after a special encoding process for the establishment of a structure index. Themethod of using a traditional search engine inverted index for node content of XMLdata to establish the full-text index method to handle the text content of the XMLelement. This article improvement and innovation of the node in the XML documenttree encoding, query processing and indexing structure, XML data structure queriesand keyword-based full-text retrieval efficiency are improved. In query processing,the analysis of a simple query, content queries and complex queries typically alsostudied the connection algorithm.