ToString (geography Data Type)
Applies to: SQL Server (all supported versions) Azure SQL Database
Returns the Open Geospatial Consortium (OGC) Well-Known Text (WKT) representation of a geography instance augmented with any Z (elevation) and M (measure) values carried by the instance.
This geography data type method supports FullGlobe instances or spatial instances that are larger than a hemisphere.
To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation.
SQL Server return type: nvarchar(max)
CLR return type: SqlString
This method returns the string "Null" when called on null instances. In SQL Server 2012 (11.x), the set of possible results on the server has been extended to FullGlobe instances. This method will return the same value as
This method is not precise.
The following example create a
LineString instance and uses
ToString() to return the text description of the instance.
DECLARE @g geography; SET @g = geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326); SELECT @g.ToString();