Unity is an architecture for integrating relational databases that performs three processes: metadata capture, semantic integration, and query formulation and execution. The found...
We explore the implications of supporting bags (i.e. multisets) in a data model and associated query language, and present some formal results concerned with the algebraic propert...
Under the support of the National Digital Archive Program (NDAP), basic species information about most Taiwanese fishes, including their morphology, ecology, distribution, specime...
Kwang-Tsao Shao, Jack Yung-Chang Lin, Hsin-Hua Lin
: Recursive queries are required in many object-oriented database applications. Among them we can mention Bill-Of-Material (BOM), stock market dependencies, various kinds of networ...
Tomasz Pieciukiewicz, Krzysztof Stencel, Kazimierz...
This paper discusses the use of XML in conjunction with a variety of repositories and database systems, and outlines some of the requirements for an effective query language. Many...