Lee Young Geol, Bae Hae Young

The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 5, No. 9, pp. 2224-2232, Sep. 1998
10.3745/KIPSTE.1998.5.9.2224,   PDF Download:

Abstract

This paper describes the design and implementation of an extended spatial query processing system which provides integrity maintenance in the spatial database system that manages the correlation between spatial data and aspatial data. Geographic information system which models geographic and spatial information in the real world is implemented based on spatial database system. Spatial database system should handle data not as simple object but as abstracted complex object and maintain integrity for various derived data in the database system efficiently and represent the conceptual characteristic of spatial data as the format of the constraint. In this thesis, we propose the spatial constraint language that can represent integrity information for spatial data as the format of the predicate logic in order to extend spatial query processor. The proposed spatial constraint language is stored as the format of reduced query tree in the meta database and is used as the information to guarantee the consistency of spatial database for user's query.

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