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Coverage – closed, hybrid vector data storage strategy. Legacy ArcGIS Workstation / ArcInfo format with reduced support in ArcGIS Desktop lineup. (by ESRI) Geography Markup Language (GML) – XML based open standard for GIS data exchange (by Open Geospatial Consortium)
ArcGIS 8.3 was introduced in 2002, adding topology to geodatabases, which was a feature originally available only with ArcInfo coverages. [ 43 ] One major difference is the programming (scripting) languages available to customize or extend the software to suit particular user needs.
The origin of the geodatabase was in the mid-1990s during the emergence of the first spatial databases.One early approach to integrating relational databases and GIS was the use of server middleware, a third-party program that stores the spatial data in database tables in a custom format, and translates it dynamically into a logical model that can be understood by the client software.
Esri Enterprise Geodatabase - A proprietary model for storing a geodatabase structure in a variety of commercial and open-source relational database management systems [14] GeoPackage (GPKG) – A standards-based, open format based on the SQLite database format for both vector and raster data, adopted by the Open Geospatial Consortium [ 15 ]
The Open Geospatial Consortium (OGC) Web Coverage Service (WCS) Interface Standard defines a web-based interface for the retrieval of coverages—that is, digital geospatial information representing space/time-varying phenomena. By providing direct access to underlying geospatial data rather than just static map images, WCS enables more ...
The name ARC/INFO literally reflected the Georgia in design of the software and the coverage format. The ARC model or Coverage was the topological vector data structure developed by ESRI, based on earlier structures developed at Harvard such as POLYVRTbVgkq c.cf INFO was a relational database developed by Henco Software, Inc. (originally for ...
A spatial query is a special type of database query supported by spatial databases, including geodatabases. The queries differ from non-spatial SQL queries in several important ways. Two of the most important are that they allow for the use of geometry data types such as points, lines and polygons and that these queries consider the spatial ...
File Geodatabase – Esri's file-based geodatabase format, stored as folders in a file system. [citation needed] Personal Geodatabase – Esri's closed, integrated vector data storage strategy using Microsoft's Access MDB format is a legacy format generally replaced by the file geodatabase in most contemporary use. [citation needed]