scholarly journals A Native XML Database Supporting Approximate Match Search

2005 ◽  
pp. 69-80 ◽  
Author(s):  
Giuseppe Amato ◽  
Franca Debole
Keyword(s):  
Xml Database ◽  
Approximate Match ◽  
Native Xml Database

A Framework for Cost-Based Query Optimization in Native XML Database Management Systems

2010 ◽  
pp. 160-183 ◽  
Author(s):  
Andreas M. Weiner ◽  
Theo Härder
Keyword(s):  
Query Optimization ◽  
Database Management ◽  
Cost Model ◽  
Database Systems ◽  
Database Management Systems ◽  
Management Systems ◽  
Xml Database ◽  
Xml Documents ◽  
Native Xml Database ◽  
Query Optimizers

Since the very beginning of query processing in database systems, cost-based query optimization has been the essential strategy for effectively answering complex queries on large documents. XML documents can be efficiently stored and processed using native XML database management systems. Even though such systems can choose from a huge repertoire of join operators (e. g., Structural Joins and Holistic Twig Joins) and various index access operators to efficiently evaluate queries on XML documents, the development of full-fledged XML query optimizers is still in its infancy. Especially the evaluation of complex XQuery expressions using these operators is not well understood and needs further research. The extensible, rule-based, and cost-based XML query optimization framework proposed in this chapter, serves as a testbed for exploring how and whether well-known concepts from relational query optimization (e. g., join reordering) can be reused and which new techniques can make a significant contribution to speed-up query execution. Using the best practices and an appropriate cost model that will be developed using this framework, it can be turned into a robust cost-based XML query optimizer in the future.

IETM Database Design Based on Native XML Database Technology

2014 ◽  
Vol 971-973 ◽  
pp. 1624-1627
Author(s):  
Jun Zhang ◽  
Jian Qiang Zhang ◽  
Hong Yan Zhao
Keyword(s):  
Design Method ◽  
Great Influence ◽  
Production Method ◽  
Module Structure ◽  
Information Control ◽  
Xml Database ◽  
Index Model ◽  
Database Technology ◽  
Native Xml Database ◽  
Information Objects

Database is the foundation of making IETM, database structure has great influence to the TETM production method and use efficiency. Aiming at the defects when using relational database to process XML documents, According to the characteristics of IETM data module and information objects under S1000D standard, native XML database needed to meeting the conditions were analyzed, using a native XML database technology to structure IETM data Module and information set; and giving data module code, information objects, information control composition structure codes of the data module structure, gives the design method of IETM database storage and index model, which can effectively avoid the traditional the deficiency of IETM database support for XML technology.

OrientX: An integrated, schema based native XML database system

2006 ◽  
Vol 11 (5) ◽  
pp. 1192-1196 ◽  
Author(s):  
Meng Xiaofeng ◽  
Wang Xiaofeng ◽  
Xie Min ◽  
Zhang Xin ◽  
Zhou Junfeng
Keyword(s):  
Database System ◽  
Xml Database ◽  
Native Xml Database

Designing a high-performance database engine for the ‘Db4XML’ native XML database system

2004 ◽  
Vol 69 (1-2) ◽  
pp. 87-104 ◽  
Author(s):  
Sudhanshu Sipani ◽  
Kunal Verma ◽  
John A. Miller ◽  
Boanerges Aleman-Meza
Keyword(s):  
High Performance ◽  
Database System ◽  
Xml Database ◽  
Native Xml Database ◽  
Database Engine
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