Abstract
AQL (acronym for: A Query Language) is a Data Base management system based on n-ary relational model. It has been designed to help the nonspecialist in data processing in solving interactively unstructured problems, in building applications, in running simulations. A rich pattern of default options, synonyms, attribute definitions, inference and a menu facility provide an easy-to-use interface which combines data extraction facility and computational capabilities of the host programming language (i.e. APL). The extension of such a system to cover the geographic data requires extensions in both the conceptual schema and the language to represent and express concepts pertaining to the geographic nature of data. Also, definition mechanism are found to be extremely useful to represent aggregate concepts in geographic data processing. The general characteristics of AQL are widely discussed in (ANT78): here they will be reviewed briefly, then the geographic extension will be discussed.
Keywords
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
This is a preview of subscription content, log in via an institution.
Preview
Unable to display preview. Download preview PDF.
References
Aldred, B. K., "The case for a Locational Data Type" Technical Report, IBM UK Scientific Center, UKSC0054, April 1974
Antonacci, F., Dell' Orco, P., Spadavecchia, V. N., Turtur, A., "AQL: A Problem-solving Query Language for Relational Data Bases" IBM Journal of Research and Development, vol. 22, n. 5, Sept. 1978 pp. 541–559
Bonfatti, F., Tiberio, P., "A data structure for land description and investigation", Proceedings of the fifth biennial international Codata Conference, B. Dreyfus ed., Pergamon Press, 1976
Carlson, E. D., Bennett, J. L., Giddings, G. M., Mantey, P. R. "The design and evaluation of the interactive geo-data analysis and display system", Proceedings of IFIP Congress 1974, Rosenfeld, J. L. ed., North Holland, 1974
Casazza, I., Faedo, C., Marini, G., "Una base di dati relazionali per la gestione dei dati ambientali", Atti del Convegno AICA, 1975
Chamberlin, D. D., Boyce, R. F., "SEQUEL, a Structured English Query Language", Proceedings 1974 ACM SIGFIDET Workshop, Ann Arbor, MI, April 1974, pp. 249–264
Codd, E. F., "A Relational Model of Data for Large Shared Data Banks", CACM 13, 377 (1970)
Codd, E. F., "Relational Completeness of Data Bases Sublanguages" Data Base Systems, Vol. 6, Courant Computer Science Symposia Series, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1972
Gosen, F., Gradenigo, G., "Proposta per un sistema informativo territoriale. Sistema di gestione di Data Bases geografici" Atti del Seminario: "Sistemi informativi per la gestione fisica ed economica dell" ambiente", Padova, March 20, 1978
"APL Language", Report No. GC26-3847, IBM Corporation, White Plains, NY
"APL Shared Variables (APLSV) User's Guide, Report No. SH20-1460-1, IBM Corporation, White Plains, NY
"APL Shared Variables (APLSV) Programming RPQ WE 1191 TSIO Program Reference Manual, Report No. SH20-1463, IBM Corporation, White Plains, NY
Ohkohchi, M., Udo, M., "CARPS: Computer Assisted Regional Planning System", IFAC Symposium on Environmental Systems Planning, Design and Control, M. Akashi ed., Pergamon Press, 1977
Smedley, B. S., "An Urban Management System and Geographic Data Processing in Urban Planning", IBM UK Scientific Center Report UKSC0079, April 1976
Zloof, M. M., "Query by Example", Proceedings National Computer Conference (AFIP Press), 44, 431 (1975)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1980 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Antonacci, F., Bartolo, L., Dell' Orco, P., Spadavecchia, V.N. (1980). AQL: A relational data base management system and its geographical applications. In: Blaser, A. (eds) Data Base Techniques for Pictorial Applications. Lecture Notes in Computer Science, vol 81. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-09763-5_31
Download citation
DOI: https://doi.org/10.1007/3-540-09763-5_31
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-09763-1
Online ISBN: 978-3-540-38651-3
eBook Packages: Springer Book Archive