修复破坏的DUAL表

1.没有重新启库        建表                create table sys.dual(                        dummy varchar2(1)                        )tablespace system;                                授权                grant select on sys.dual to public with grant option;                        插入关键数据                insert into dual values('X');                        善后                查看相关SYS下的失效对象，并重新编译                        select object_name,owner,object_type from dba_objects where status='INVALID'                        @？/rdbms/admin/utlrp.sql2.重新起库        设置参数                replication_dependency_tracking 为false                alter system set replication_dependency_tracking=false scope=spfile;                        建表                create table sys.dual(                dummy varchar2(1)                )tablespace system;                        授权                grant select on sys.dual to public with grant option;                        插入关键数据                insert into dual values('X');                        设置参数                alter system set replication_dependency_tracking=true scope=spfile;                        善后                查看相关SYS下的失效对象，并重新编译                 select object_name,owner,object_type from dba_objects where status='INVALID'                        @？/rdbms/admin/utlrp.sql