Returns 1 if a geometry instance intersects another geometry instance. Returns 0 if it does not.
.STIntersects ( other_geometry )
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other_geometry
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Is another geometry instance to compare against the instance on which STIntersects() is invoked.
SQL Server return type: bit
CLR return type: SqlBoolean
This method always returns null if the spatial reference IDs (SRIDs) of the geometry instances do not match.
The following example uses STIntersects() to determine if two geometry instances intersect each other.
DECLARE @g geometry;
DECLARE @h geometry;
SET @g = geometry::STGeomFromText('LINESTRING(0 2, 2 0, 4 2)', 0);
SET @h = geometry::STGeomFromText('POINT(1 1)', 0);
SELECT @g.STIntersects(@h);
Other Resources
Geometry Methods Supported by Spatial Indexes
OGC Methods on Geometry Instances
Help and Information
Getting SQL Server 2008 Assistance