第20次：2015-10-20星期二

botang

select  username from dba_users order by 1 desc;

select  o.object_name  , o.object_type  from dba_objects o  where o.owner='U90'  order by 1;

select  * from u90.rc_backup_set;

select  * from u90.db;

select  * from u90.dbinc;