ToString (geography Data Type)
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.
Syntax
.ToString ()
Return Types
SQL Server return type: nvarchar(max)
CLR return type: SqlString
Remarks
This method returns the string "Null" when called on null instances.
Examples
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();