stintersects-geography-data-type.md

title	description	author	ms.author	ms.date	ms.service	ms.subservice	ms.topic	f1_keywords	helpviewer_keywords	dev_langs	monikerRange
STIntersects (geography Data Type)	STIntersects (geography Data Type)	MladjoA	mlandzic	03/14/2017	sql	t-sql	reference	STIntersects (geography Data Type) STIntersects_TSQL	STIntersects method	TSQL	=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current

STIntersects (geography Data Type)

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Returns 1 if a geography instance intersects another geography instance. Returns 0 if it does not.

Syntax

.STIntersects ( other_geography )  

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Arguments

other_geography
Is another geography instance to compare to the instance on which STIntersects() is invoked.

Return Types

[!INCLUDEssNoVersion] 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

OGC Methods on Geography Instances