Towards automatic generation of rules for incremental maintenance of XML views of relational data

This paper first proposes a two-step approach to define rules for maintaining materialized XML views specified over relational databases. The first step concentrates on identifying all paths of the base schema that are relevant to a path of the view, with respect to an update. The second step creates rules that maintain all view paths that can be affected by the update. The paper then discusses how to automatically identify all paths in the base schema that are relevant to a view path with respect to a given update operation and how to create the appropriate maintenance rules.