STGeometryN (geometry Data Type)

Returns a specified geometry in a geometry collection.

Syntax

.STGeometryN ( expression )

Arguments

• expression
  Is an int expression between 1 and the number of geometry instances in the geometry collection.

Return Types

SQL Server return type: geometry

CLR return type: SqlGeometry

Remarks

This method returns null if the parameter is larger than the result of STNumGeometries() and will throw an ArgumentOutOfRangeException if the expression parameter is less than 1.

Examples

The following example creates a MultiPoint geometry collection and uses STGeometryN() to find the second geometry instance of the collection.

DECLARE @g geometry;
SET @g = geometry::STGeomFromText('MULTIPOINT(0 0, 13.5 2, 7 19)', 0);
SELECT @g.STGeometryN(2).ToString();

See Also

Other Resources

OGC Methods on Geometry Instances