Spatial SQL: a query and presentation language
TL;DR: The spatial query language has been designed as a minimal extension to the interrogative part of SQL and distinguishes from previously designed SQL extensions by: the preservation of SQL concepts; the high-level treatment of spatial objects; and the incorporation of spatial operations and relationships.
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Abstract: Recently, attention has been focused on spatial databases, which combine conventional and spatially related data, such as geographic information systems, CAD/CAM, or VLSI. A language has been developed to query such spatial databases. It recognizes the significantly different requirements of spatial data handling and overcomes the inherent problems of the application of conventional database query languages. The spatial query language has been designed as a minimal extension to the interrogative part of SQL and distinguishes from previously designed SQL extensions by: the preservation of SQL concepts; the high-level treatment of spatial objects; and the incorporation of spatial operations and relationships. It consists of two components, a query language to describe what information to retrieve and a presentation language to specify how to display query results. Users can ask standard SQL queries to retrieve nonspatial data based on nonspatial constraints, use Spatial SQL commands to inquire about situations involving spatial data, and give instructions in the Graphical Presentation Language, GPL to manipulate or examine the graphical presentation. >
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Citations
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References
Point-set topological spatial relations
TL;DR: A novel theory of topological spatial relations between sets is developed in which the relations are defined in terms of the intersections of the boundaries and interiors of two sets, and it is shown that these relations correspond to some of the standard set theoretical andTopological spatial Relations between sets such as equality, disjointness and containment in the interior.
1.6K
•Book
Semiology of graphics
Jacques Bertin
- 01 Jan 1983
TL;DR: A liquid proportioning system includes two groups of positive metering tanks, each group consisting of at least two tanks each containing a supply of liquid to be blended and including outlet control device for selectively regulating the volume of liquid leaving the tank per unit of time.
1.4K
Query-by-example: a data base language
TL;DR: Discussed is a high-level data base management language that provides the user with a convenient and unified interface to query, update, define, and control a data base.
981
The design and implementation of INGRES
TL;DR: The currently operational (March 1976) version of the INGRES database management system is described in this article, which gives a relational view of data, supports two high level nonprocedural data sublanguages, and runs as a collection of user processes on top of the UNIX operating system for Digital Equipment Corporation PDP 11/40, 11/45, and 11/70 computers.
A Formal Definition of Binary Topological Relationships
Max J. Egenhofer
- 21 Jun 1989
TL;DR: A formal definition of spatial relationships is necessary to clarify the users' diverse understanding of spatial relationship and to actually deduce relationships among spatial objects.
386