STDimension (geometry)#
Returns the maximum dimension of a geometry instance.
Syntax#
.STDimension ()
Return type#
int
Remarks#
STDimension() returns -1 if the geometry instance is empty.
Example#
Create a table variable to hold geometry instances and inserts a Point, a LineString, and a Polygon. Use STDimension() to return the dimensions of each geometry instance.
CREATE TABLE temp_table ([name] varchar(10), [geom] geometry);
INSERT INTO temp_table values ('Point', geometry::STGeomFromText('POINT(3 3)', 0));
INSERT INTO temp_table values ('LineString', geometry::STGeomFromText('LINESTRING(0 0, 3 3)', 0));
INSERT INTO temp_table values ('Polygon', geometry::STGeomFromText('POLYGON((0 0, 3 0, 0 3, 0 0))', 0));
SELECT [name], [geom].STDimension() as [dim]
FROM temp_table;