STPolyFromWKB (geometry Data Type)

STPolyFromWKB (geometry Data Type)


Applies To: SQL Server 2014, SQL Server 2016 Preview

Returns a geometry Polygon instance from an Open Geospatial Consortium (OGC) Well-Known Binary (WKB) representation.

Applies to: SQL Server (SQL Server 2008 through current version), Azure SQL Database.

STPolyFromWKB ( 'WKB_polygon' , SRID )


Is the WKB representation of the geometry Polygon instance you wish to return. WKB_polygon is a varbinary(max) expression.


Is an int expression representing the spatial reference ID (SRID) of the geometry Polygon instance you wish to return.

SQL Server return type: geometry

CLR return type: SqlGeometry

OGC type: Polygon

This method will throw a FormatException if the input is not well-formatted.

The following example uses STPolyFromWKB() to create a geometry instance.

DECLARE @g geometry; 
SET @g = geometry::STPolyFromWKB(0x0103000000010000000400000000000000000014400000000000001440000000000000244000000000000014400000000000002440000000000000244000000000000014400000000000001440, 0);
SELECT @g.STAsText();

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