STNumPoints (geometry Data Type)
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric
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 (12.x) and earlier versions, 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
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