A graphical query language for mobile information systems

ABSTRACT

The advance of the mobile computing environment allows data to be accessed in any place at any time, but currently only simple and ad-hoc queries are supported. People are eager for mobile information systems with more functionality and powerful querying facilities. In this paper, a graphical query language called MoSQL is proposed to be the basis of general mobile information systems. It provides a uniform way for users to access alphanumerical data and to query current or future location information, based on an icon-based interface. The interface is particularly suitable for the mobile environment, since it is easily operated by clicking or dragging the mouse. An example and the underlying theoretical framework will be presented in this paper to demonstrate the functionality of MoSQL.

REFERENCES

• 1: Alexander Aiken , Jolly Chen , Michael Stonebraker , Allison Woodruff, Tioga-2: A Direct Manipulation Database Visualization Environment, Proceedings of the Twelfth International Conference on Data Engineering, p.208-217, February 26-March 01, 1996
• 2: R. Alonso, E. Haber, and H. Korth. A database interface for mobile computers. In IEEE Globecom '92 Workshop: Networking of Personal Communications Applications, 1992.
• 3: M. J. Egenhofer, Spatial SQL: A Query and Presentation Language, IEEE Transactions on Knowledge and Data Engineering, v.6 n.1, p.86-95, February 1994 [doi>10.1109/69.273029]
• 4: Ralf Hartmut Güting, An introduction to spatial database systems, The VLDB Journal — The International Journal on Very Large Data Bases, v.3 n.4, October 1994
• 5: A. Massari, S. Weissman, and P. K. Chrysan this. Supporting mobile database access through query by icons. Distributed and Parallel Databases Journal (Special Issue on Databases and Mobility), 4(3):249--270, 1996.
• 6: N. Roussopoulos , C. Faloutsos , T. Sellis, An Efficient Pictorial Database System for PSQL, IEEE Transactions on Software Engineering, v.14 n.5, p.639-650, May 1988 [doi>10.1109/32.6141]
• 7: Simonas Šaltenis , Christian S. Jensen , Scott T. Leutenegger , Mario A. Lopez, Indexing the positions of continuously moving objects, ACM SIGMOD Record, v.29 n.2, p.331-342, June 2000
• 8: A. Prasad Sistla , Ouri Wolfson , Sam Chamberlain , Son Dao, Modeling and Querying Moving Objects, Proceedings of the Thirteenth International Conference on Data Engineering, p.422-432, April 07-11, 1997
• 9: Richard Thomas Snodgrass, The TSQL2 Temporal Query Language, Kluwer Academic Publishers, Norwell, MA, 1995
• 10: Ouri Wolfson , A. Prasad Sistla , Sam Chamberlain , Yelena Yesha, Updating and Querying Databases that Track Mobile Units, Distributed and Parallel Databases, v.7 n.3, p.257-387, July 1999 [doi>10.1023/A:1008782710752]
• 11: Location Prediction and Queries for Tracking Moving Objects, Proceedings of the 16th International Conference on Data Engineering, p.687, February 28-March 03, 2000