Description of the illustration object_type_def
{ [ invoker_rights_clause ] | [ accessible_by_clause ] } { { IS | AS } OBJECT | UNDER [schema.]supertype } [ [NOT] { FINAL | INSTANTIABLE } ]...
{ [ invoker_rights_clause ] | [ accessible_by_clause ] } { { IS | AS } OBJECT | UNDER [schema.]supertype } [ [NOT] { FINAL | INSTANTIABLE } ]...