geography Data Type Method Reference
SQL Server supports a set of methods for the geography spatial data type, including methods on geography that are defined by the Open Geospatial Consortium (OGC) standard and a set of Microsoft extensions to that standard.
The error tolerance for the geography methods can be as large as 1.0e-7 * extents. The extents refer to the approximate maximal distance between points of the geography object.
In This Section
OGC Methods on Geography Instances
Extended Methods on Geography Instances
Extended Static Geography Methods
Static Aggregate Geography Methods