Spatial Instance Types
IN SQL Server 2008, the GEOMETRY and GEOGRAPHY data types supported seven spatial type classes that you can create and work with in a database:
POINT—A POINT is an exact location and is defined in terms of an X and Y pair of coordinates, as well as optionally by Z (elevation) and M (measure) coordinates. It does not have a length or any area associated with it. These instance types are used as the fundamental building blocks of more complex spatial types.
MULTIPOINT—A MULTIPOINT is a collection of zero or more points.
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