Updates over virtual XML views that wrap the relational data have not been well supported by current XML data management systems. This paper studies the problem of the existence of a correct relational update translation for a given view update. First, we propose a clean extended-source theory to decide whether a translation mapping is correct. Then to answer the question of the existence of a correct mapping, we classify a view update as either un-translatable, conditionally or unconditionally translatable under a given update translation policy. We design a graph-based algorithm to classify a given update into one of the three update categories based on schema knowledge extracted from the XML view and the relational base. This now represents a practical approach that could be applied by any existing view update system in industry and in academic for analyzing the translatability of a given update statement before translation of it is attempted. © Springer-Verlag 2004.
CITATION STYLE
Wang, L., & Rundensteiner, E. A. (2004). On the updatability of XML views published over relational data. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 3288, 795–809. https://doi.org/10.1007/978-3-540-30464-7_59
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