In SQL Server 2008, Microsoft introduced support for geospatial data, with a rich set of spatial queries and constructions, in both Cartesian and geodetic coordinates. Most of this functionality is also available as an independent (free download) .NET library. This talk will focus on this library, touching on the differences in functionality between its TSQL and C# interfaces.
geospatial data, planar coordinates, sqlGeometry, sqlGeography
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