标题: ORA-22341: cannot assign supertype instance [打印本页] 作者: admin 时间: 2016-8-31 17:16 标题: ORA-22341: cannot assign supertype instance ORA-22341: cannotassign supertype instance to subtype Cause: An attempt was made to assign or copy a supertypeinstance to a
container (destination) that can only hold a subtype instance. Action: Makesure the runtime type of the source of the assignment or copy is the
same type as the destination or is a subtype of the destination type