文档解释

ORA-21601: attribute is not an object

Cause: The user attempts to perform an operation (that is valid only for an object) to an attribute of a built-in type. An example of such an illegal operation is to dynamically set a null structure to an attribute of a built-in type.

Action: User should avoid performing such operation to an attribute of built-in type.

编辑：568数据

标签：文档,avoid,ORA,attribute,objectCause