Spatial Data (SQL Server)

Spatial data represents information about the physical location and shape of geometric objects. These objects can be point locations or more complex objects such as countries, roads, or lakes.

SQL Server supports two spatial data types: the geometry data type and the geography data type.

• The geometry type represents data in a Euclidean (flat) coordinate system.

• The geography type represents data in a round-earth coordinate system.

Both data types are implemented as .NET common language runtime (CLR) data types in SQL Server.

Ważne:
For a detailed description and examples of the new spatial features in this release, download the white paper, New Spatial Features in SQL Server 2012.

Related Tasks

• Create, Construct, and Query geometry Instances
  Describes the methods that you can use with instances of the geometry data type.

• Create, Construct, and Query geography Instances
  Describes the methods that you can use with instances of the geography data type.

• Query Spatial Data for Nearest Neighbor
  Describes the common query pattern that is used to find the closest spatial objects to a specific spatial object.

• Create, Modify, and Drop Spatial Indexes
  Provides information about creating, altering, and dropping a spatial index.

Related Content

• Spatial Data Types Overview
  Introduces the spatial data types.

  • Point

  • LineString

  • CircularString

  • CompoundCurve

  • Polygon

  • CurvePolygon

  • MultiPoint

  • MultiLineString

  • MultiPolygon

  • GeometryCollection

• Spatial Indexes Overview
  Introduces spatial indexes and describes tessellation and tessellation schemes.