Get and set the exterior ring of an ST_Geometry type that represents an ST_Polygon value.
Valid Data Types
ST_Polygon
This method can be called on 3D geometries (those that include z coordinates). However, the z coordinate is ignored in method calculations. Consequently, any z coordinates returned by this method should be ignored. Teradata recommends using the Make_2D method to strip out the z coordinates of the return value.
Result Type
Returns an ST_Geometry value.
| IF you … | THEN ST_ExteriorRing returns … |
|---|---|
| do not pass in the acurve argument | an ST_LineString of the exterior ring of the ST_Polygon. |
| pass in the acurve argument | the new ST_Polygon with the exterior ring set to the value of the acurve argument. |