| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | ms.custom | f1_keywords | helpviewer_keywords | dev_langs | monikerRange | |||||
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STNumPoints (geometry Data Type) |
STNumPoints (geometry Data Type) |
MladjoA |
mlandzic |
03/14/2017 |
sql |
t-sql |
reference |
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=azuresqldb-current || >=sql-server-2016 || >=sql-server-linux-2017 || =azuresqldb-mi-current || =fabric |
[!INCLUDE SQL Server Azure SQL Database Azure SQL Managed Instance FabricSQLDB]
Returns the sum of the number of points in each of the figures in a geometry instance.
.STNumPoints ( )
[!INCLUDEssNoVersion] 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();