select * from v$datafile; select * from v$log; => 백업 이후의 아카이브 확인 select * from v$logfile; select a.file#, a.name, a.checkpoint_change#, b.status, b.change#, b.time from v$datafile a, v$backup b where a.file# = b.file#; select name from v$controlfile; S! ls /home/oracle1/arch1 SQL> create table hr.emp_20 as select * from hr.employees where department_id = 20; Table created. SQL> select count(*) f..