STEquals (geometry Data Type)

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

Składnia

.STEquals ( other_geometry )

Arguments

• other_geometry
  Is another geometry instance to compare against the instance on which STEquals() is invoked.

Return Types

SQL Server return type: bit

CLR return type: SqlBoolean

Uwagi

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

Examples

The following example creates two geometry instances with STGeomFromText() that are equal but not trivially equal, and uses STEquals() to test their equality.

DECLARE @g geometry
DECLARE @h geometry;
SET @g = geometry::STGeomFromText('LINESTRING(0 2, 2 0, 4 2)', 0);
SET @h = geometry::STGeomFromText('MULTILINESTRING((4 2, 2 0), (0 2, 2 0))', 0);
SELECT @g.STEquals(@h);

Zobacz także

Koncepcje

Spatial Indexes Overview

Inne zasoby

OGC Methods on Geometry Instances