Long (geography Data Type)
Applies To: SQL Server 2014, SQL Server 2016 Preview
The longitude property of the geography instance.
Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.
SQL Server type: float
CLR type: SqlDouble
In the OpenGIS model, Long is defined only on geography instances composed of a single point. This property will return NULL if geography instances contain more than a single point. This property is precise and read-only.
This example creates a Point instance and retrieves the longitude of the point.
DECLARE @g geography; SET @g = geography::STGeomFromText('POINT(-122.34900 47.65100)', 4326); SELECT @g.Long;