STEquals (geography Data Type)

Applies to: yesSQL Server (all supported versions) YesAzure SQL Database YesAzure SQL Managed Instance

Returns 1 if a geography instance represents the same point set as another geography instance. Returns 0 if it does not.

Syntax

  
.STEquals ( other_geography )  

Note

To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation.

Arguments

other_geography
Is another geography instance to compare against the instance on which STEquals() 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 creates two geography instances with STGeomFromText() that are equal but not trivially equal, and uses STEquals() to test their equality. The instances are equal because LINESTRING and POINT are contained within the POLYGON.

DECLARE @g geography;  
DECLARE @h geography;  
SET @g = geography::STGeomFromText('GEOMETRYCOLLECTION(POLYGON((-122.368 47.658, -122.338 47.649, -122.338 47.658, -122.368 47.658, -122.368 47.658)), LINESTRING(-122.360 47.656, -122.343 47.656), POINT (-122.35 47.656))', 4326);  
SET @h = geography::STGeomFromText('POLYGON((-122.368 47.658, -122.338 47.649, -122.338 47.658, -122.368 47.658, -122.368 47.658))', 4326);  
SELECT @g.STEquals(@h);  

See Also

OGC Methods on Geography Instances