Application of DBMS to Land Information Systems
Application of DBMS to Land Information Systems
复制标题
DBMS在土地信息系统中的应用
DOI:
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发表时间:
1981
期刊:
影响因子:
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通讯作者:
A. Frank
中科院分区:
文献类型:
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作者:
A. Frank
Land Information Systems shall be used to store data on objects in space (e. g. buildings, roads, electricity networks etc.). Interactive retrieval is mainly done in order to get a map drawn on a CRT screen; the typical query is therefore a two-dimensional range query which yields all the data needed to draw the map.
A method to implement such a LIS based on a commercially available DMBS (e. g. DMBS-10 from DEC) is shown and some practical results are reported. The method used relies heavily on control of physical placement of stored records and clustering of data according to neighbourhood.