STNumGeometries (geometry Data Type)
Applies to:
SQL Server
Azure SQL Database
Azure SQL Managed Instance
Returns the number of geometries that comprise a geometry instance.
Syntax
.STNumGeometries ( )
Return Types
SQL Server return type: int
CLR return type: SqlInt32
Remarks
This method returns 1 if the geometry instance is not a MultiPoint, MultiLineString, MultiPolygon, or GeometryCollection instance, and 0 if the geometry instance is empty.
Note
If a GeometryCollection has nested empty elements, STNumGeometries()
will not return 0. Though the elements in the GeometryCollection instance are empty, the instance itself is not an empty set.