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GeomFromGml (geometry Data Type)

Applies To: SQL Server 2014, SQL Server 2016 Preview

Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).

Construct a geometry instance given a representation in the SQL Server subset of the Geography Markup Language (GML).

For more information on the Geography Markup Language, see the following Open Geospatial Consortium Specifications:

OGC Specifications, Geography Markup Language

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

GeomFromGml ( GML_input, SRID )


Is an XML input from which the GML will return a value.


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

SQL Server return type: geometry

CLR return type: SqlGeometry

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

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

DECLARE @g geometry;
DECLARE @x xml;
SET @x = '<LineString xmlns="http://www.opengis.net/gml"> <posList>100 100 20 180 180 180</posList> </LineString>';
SET @g = geometry::GeomFromGml(@x, 0);
SELECT @g.ToString();
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