Descriptive information (semantic description or feature data) or attribute (Attribute data or Non-Spatial data) is numerical or qualitative. Which have the characteristics of spatial information. The direct relationship GIS is currently used by various database management systems. Available such as dBase, FoxPro, Oracle, Microsoft Access, etc., to be associated with spatial databases. These data management system to manage and process the data. To tell the characteristics of spatial information. Linking spatial data with attribute data. By the code-share (Common key code).
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