for Query By Diagram

Visual query language

  • Angelaccio, M., Catarci, T. & Santucci, G., "QBD*: A Fully Visual Query System", Journal on Visual Languages and Computing, 1(2), 255-273. view details
  • Angelaccio, M., Catarci, T. & Santucci, G., "QBD*: A Graphical Query Language with Recursion" IEEE Transactions on Software Engineering 16(10) October 1990 pp1150-1163 view details
  • Batini, C., Catarci, T., Costabile, M.F., Levialdi, S. Visual Strategies for Querying Databases view details
          in Proc. of the 1991 IEEE Workshop on Visual Languages, Kobe, Japan, October 1991 view details
  • Giuseppe Santucci and Pier Angelo Sottile "Query by Diagram: a Visual Environment for Querying Databases" view details Abstract: In this paper we describe the architecture and the implementation of a graphical query system, based on the diagrammatic representation of Entity Relationship schemata. The query language underlying the system is very powerful, allowing the formulation of recursive queries; moreover user interaction in both managing diagrams and expressing queries is simplified by the presence of a fully visual environment and a rich set of interaction strategies.
          in Software - Practice and Experience 23(03) March 1993 view details