Calculates the linear length of a curve/multicurve on the surface of the Earth.
Syntax
geometry-expression.ST_Length_Spheroid(VARCHAR(128) unit_name)
Parameters
-
unit_name –
The linear unit of measure. Defaults to the unit of the spatial reference system.
Returns
DOUBLE Returns the linear length of the curve/multicurve on the surface of the Earth calculated in the specified linear units.
Standards
SQL/MM (ISO/IEC 13249-3: 2006) Vendor extension