Research on Global Query Transformation in Multidatabase SystemsLI
Bing Li · Jisuanji gongcheng · 2005
This paper uses query tree as the internal representation for query transformation, employs multidatabase normal tree (MNT) tostandardize the global query tree and gives the transformation rules during the normalization. Finally, it presents the algorithms for multidatabasequery transformation and discusses the equivalence of the transformation.