Abstract. Relational algebra is one of the main topics covered in undergraduate computer science database courses. In this paper, we present a web-based tool designed to automatica...
Josep Soler, Imma Boada, Ferran Prados, Jordi Poch...
Relational index structures, as for instance the Relational Interval Tree, the Relational R-Tree, or the Linear Quadtree, support efficient processing of queries on top of existing...
Hans-Peter Kriegel, Peter Kunath, Martin Pfeifle, ...
An important direction in database research for non-standard applications (e.g. engineering or design applications) deals with adequate support for complex objects. Without doubt,...
We present a valid-time extension of SQL and investigate its efficient implementation on an Object-Relational database system. We propose an approach where temporal queries are ex...
Abstract. Data integrity is an assurance that data has not been modified in an unknown or unauthorized manner. The goal of this paper is to allow a user to leverage a small amount...