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Microsoft® SQL Server 2012 Unleashed by Alex T. Silverstein, Chris Gallelli, Paul T. Bertucci, Ray Rankins

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The Spatial Data Types

SQL Server 2008 introduced two new .NET common language runtime (CLR) data types for storing spatial data: GEOMETRY and GEOGRAPHY. These types support methods and properties that allow for the creation, comparison, analysis, and retrieval of spatial data. Spatial data types provide a comprehensive, high-performance, and extensible data storage solution for spatial data, enabling organizations of any scale to integrate geospatial features into their applications and services.

The GEOMETRY Data Type

The GEOMETRY data type is a .NET CLR data type that supports the planar model/data, which assumes a flat projection and is therefore sometimes called flat Earth. Geometry data represents information in a uniform two-dimensional ...

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