在采用IMPDP/IMP工具迁移数据时,经常会提示无效对象的警告,需要采用如下方式处理. 1. 查询指定用户的无效对象 su – oracle sqlplus / as sysdba SQL> select owner,object_name,replace(object_type,' ','') object_type,to_char(created,'yyyy-mm-dd') as created,to_char(last_ddl_time,'yyyy-mm-dd') as last_ddl