STContains (geometry Data Type)


Returns 1 if a geometry instance completely contains another geometry instance. Returns 0 if it does not.

Applies to: SQL Server (SQL Server 2012 through current version), Azure SQL Database.
.STContains ( other_geometry )  

Is another geometry instance to compare against the instance on which STContains() is invoked.

SQL Server return type: bit

CLR return type: SqlBoolean

STContains() always returns null if the spatial reference IDs (SRIDs) of the geometry instances do not match.

The following example uses STContains() to test two geometry instances to see if the first instance contains the second instance.

DECLARE @g geometry;  
DECLARE @h geometry;  
SET @g = geometry::STGeomFromText('POLYGON((0 0, 2 0, 2 2, 0 2, 0 0))', 0);  
SET @h = geometry::STGeomFromText('POINT(1 1)', 0);  
SELECT @g.STContains(@h);  

Spatial Indexes Overview
OGC Methods on Geometry Instances

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