Updating Views Over Recursive XML

1st Workshop on Emerging Research Opportunities for Web Data Management

Ming Jiang ; Ling Wang ; Murali Mani ; Elke Rundensteiner

Others  :  http://CEUR-WS.org/Vol-229/paper7.pdf
PID  :  12493

来源: CEUR

【 摘 要 】

We study the problem of updating XML views defined over XML documents. A view update is performed by finding the base updates over the underlying data sources that achieve the desired view update. If such base updates do not exist, the view update is said to be untranslatable and rejected. In SQL, determining whether a view update is translatable is performed using schema level analysis, where the view definition and the base schema are used. XML schemas are more complex than SQL schemas, and can specify recursive types and cardinality constraints. In this paper, we propose a solution based on schema level analysis for determining whether an update over XML views is translatable and for finding the translation if one exists, while considering the features of XML schemas.