STNumPoints (geometry Data Type)

Applies to: SQL Server (all supported versions) Azure SQL Database Azure SQL Managed Instance

Returns the sum of the number of points in each of the figures in a geometry instance.

Syntax

  
.STNumPoints ( )  

Note

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

Return Types

SQL Server return type: int

CLR return type: SqlInt32

Remarks

This method counts the points in the description of a geometry instance. Duplicate points are counted. If this instance is a collection type, this method returns the sum of the points in each of its elements.

Examples

The following example creates a LineString instance and uses STNumPoints() to determine how many points were used in the description of the instance.

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

See Also

OGC Methods on Geometry Instances