Returns the lineal distance between two points located on a perfect sphere of radius = 6370986m. It is more quick than geo.distanceSpheroid but less accurate.

1 geo.distanceSphere

<geo.distanceSphere
    ora_tol='ora_tol'
    ora_unit='M|KM|CM|MM|MILE|NAUT_MILE|FOOT|INCH|SQ_KM...'
>
    <geom1> *
        <geom1 /> *
    </geom1>
    <geom2> *
        <geom1 /> *
    </geom2>
</geo.distanceSphere>

Attributes
Name	Type	Required	Default	Description
Aora_tol	decimal			0.05	Tolerance. It is only used in oracle.
Aora_unit	string				Unit of measurement. If not specified, ORACLE will use the default unit of the SRID of the geometry. It is only used in oracle.

Arguments
Name	Type	Required	Unique	Nullable	Description
Egeom1	geometry				Geometric object type POINT.
Egeom1	geometry
Egeom2	geometry				Geometric object type POINT.
Egeom1	geometry

Example

Copy

<select>
    <columns>
        <geo.distanceSphere ora_tol=''>
             <geom1>a.the_geom</geom1>
             <geom2>a.the_geom</geom2>
        </geo.distanceSphere>
    </columns>
    <from table='points' alias='a' >
        <join table='points' alias='b'>
        </join>
    </from>
    <where>
        a.name = 'Barcelona' AND b.name = 'London'
    </where>
</select>