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STStartPoint (geometry Data Type)

  • Άρθρο

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

Returns the start point of a geometry instance.

Syntax

  
.STStartPoint ( )

Return Types

SQL Server return type: geometry

CLR return type: SqlGeometry

Open Geospatial Consortium (OGC) type: Point

Remarks

STStartPoint() is the equivalent of STPointN (1).

Examples

The following example creates a LineString instance and uses STStartPoint() to retrieve the start point of the instance.

DECLARE @g geometry;  
SET @g = geometry::STGeomFromText('LINESTRING(0 0, 2 2, 1 0)', 0);  
SELECT @g.STStartPoint().ToString();

See Also

STPointN (geometry Data Type)
OGC Methods on Geometry Instances