DATABASE MANAGEMENT SYSTEMS FOR SPATIAL DATA STRUCTURES – AN OVERVIEW

AL. M. Imbroane , L. Bucur

ABSTRACT - Database Management Systems for Spatial Data Structures - An Overview: The database is the foundation of Geographical Information System (GIS). One obvious drawback of the standard Database Management System (DBMS) is that they cannot manipulate efficiently geographical data. Different GIS architectures try to solve these problems in their own manners, each with its own advantages and disadvantages. Some of them, use pure relational database, others object-oriented database (OO-DB). For a better perception of spatial data models in relational DBMS (RDBMS) some authors propose some extensions to the relational model to make it more suitable for geographical operations. The extension is a transition between RDBMS and OO-DB. The OO approach is an alternative to the relational model for information system and especially for GIS software. The main objective of this paper is to identify a number of keys issues that need to be addressed in the near term before we can expect to see support of spatial data management in commercial database systems. Another objective is to clarify the definitions used by GIS designer and users, like entity, attribute and object which is used for different meaning.

Keywords: database management, RDBMS, spatial data,  object oriented database

DATABASE MANAGEMENT SYSTEMS FOR SPATIAL DATA STRUCTURES AN OVERVIEW.pdf