The performance of updating xml in traditional databases
Pensri Amornsinlaphachai, Kwanjai Deejring · 2008
Most researches in the XML area have concentrated on storing, querying and publishing XML, while not many have paid attention to updating XML; thus the XML update area is not fully developed. This work provides the overview of a solution for the update of XML documents via ORDB (Object-Relational Database) to advance the techniques in this area through preserving constraints, maintaining performance in the presence of data redundancy, permitting joins of documents in updates and allowing the updates of documents whose structure is known partially or whose structure is recursive. The main contribution is to compare the performance of the solution and the existing ones. Thus experimental study to evaluate the performance of XML update processing has been conducted. The experimental results show that updating multiple XML documents storing non-redundant data yields a better performance than updating a single XML document storing redundant data; an ORDB can take advantage of this by caching data to a greater extent than a native XML database.