GIS Dictionary
Definitions for GIS terms related to operations such as analysis, GIS modeling and web-based GIS, cartography, and Esri software.
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spatial index
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[ESRI software]
In a geodatabase, a mechanism for optimizing access to data based on the spatial column of the business table. In most geodatabases, a system of grids is used for the spatial index. Exceptions to this are spatial indexes used in Oracle Spatial or Informix databases, which use R-tree indexes.
