"Sparse" data, in which relations have many attributes that are null for most tuples, presents a challenge for relational database management systems. If one uses the no...
Jennifer L. Beckmann, Alan Halverson, Rajasekar Kr...
Modern information systems, and web information systems in particular, are faced with frequent database schema changes, which generate the necessity to manage them and preserve the...
An important activity in the design of a particular database application consists in identifying the integrity constraints that must hold on the database, and that are used to det...
Karla A. V. Borges, Alberto H. F. Laender, Clodove...
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
Abstract. Integration of text and documents into database management systems has been the subject of much research. However, most of the approaches are limited to data retrieval. C...
Stefania Leone, Ela Hunt, Thomas B. Hodel, Michael...