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STGeomFromWKB (geography Data Type)

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


STGeomFromWKB ( 'WKB_geography' , SRID )


  • WKB_geography
    Is the WKB representation of the geography instance you wish to return. WKB_geography is a varbinary(max) expression.

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

Return Types

SQL Server return type: geography

CLR return type: SqlGeography


The OGC type of the geography instance returned by STGeomFromText() is set to the corresponding WKB input.

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


The following example uses STGeomFromWKB() to create a geography instance.

DECLARE @g geography;
SET @g = geography::STGeomFromWKB(0x010200000002000000D7A3703D0A975EC08716D9CEF7D34740CBA145B6F3955EC08716D9CEF7D34740, 4326);
SELECT @g.ToString();

See Also

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