STIntersects (geography Data Type)
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance
Returns 1 if a geography instance intersects another geography instance. Returns 0 if it does not.
Syntax
.STIntersects ( other_geography )
Note
To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation.
Arguments
other_geography
Is another geography instance to compare to the instance on which STIntersects()
is invoked.
Return Types
SQL Server return type: bit
CLR return type: SqlBoolean
Remarks
This method always returns NULL if the spatial reference IDs (SRIDs) of the geography instances do not match.
Examples
The following example uses STIntersects()
to determine whether two geography
instances intersect each other.
DECLARE @g geography;
DECLARE @h geography;
SET @g = geography::STGeomFromText('POLYGON((-122.358 47.653, -122.348 47.649, -122.348 47.658, -122.358 47.658, -122.358 47.653))', 4326);
SET @h = geography::STGeomFromText('LINESTRING(-122.360 47.656, -122.343 47.656)', 4326);
SELECT CASE @g.STIntersects(@h)
WHEN 1 THEN '@g intersects @h'
ELSE '@g does not intersect @h'
END;
See Also
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