Long (geography Data Type)

Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance

The longitude property of the geography instance.




To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation.

Return Value

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;  

See Also

Extended Methods on Geography Instances