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STNumPoints (geometry Data Type)


Applies To: SQL Server 2014, SQL Server 2016 Preview

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

.STNumPoints ( )

SQL Server return type: int

CLR return type: SqlInt32

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.

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();
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