对数据文件的指定时间恢复测试
环境：oracle 11.2.0.1
1.创建表t04
create table t04 as select * from t01;
当前存在的表 t03 04
2.备份全库
backup as compressed backupset database format '/home/oracle/bak_dir/whole_%d_%U';
tag=TAG20170605T134710
3.切换归档日志
sql 'alter system archive log current';
4.系统时间
SQL> alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss";
SQL> select sysdate from dual;
SYSDATE
-------------------
2017-06-05 13:51:15
5.删除t04
drop table t04
6.备份全库
backup as compressed backupset database format '/home/oracle/bak_dir/whole_%d_%U';
tag=TAG20170605T135412
7.使数据文件离线
RMAN> sql 'alter database datafile 6 offline';
8.删除数据文件
[oracle@Oracle02 orcl]$ rm -f clinics01.dbf
9.恢复
run{
sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"';
restore datafile 6 from tag=TAG20170605T134710;
recover datafile 6 until time '2017-06-05 13:51:10';
sql 'alter database datafile 6 online';
}
结论: t04表仍不存在,数据文件仍然会被恢复到删除t04表后的时间。对单个文件指定时间点恢复失败
对整库指定时间恢复
1.查看备份集
RMAN> list backup summary;
List of Backups
===============
Key TY LV S Device Type Completion Time #Pieces #Copies Compressed Tag
------- -- -- - ----------- --------------- ------- ------- ---------- ---
656 B F A DISK 26-MAY-17 1 1 NO TAG20170526T233019
657 B F A DISK 26-MAY-17 1 1 NO TAG20170526T233019
659 B A A DISK 26-MAY-17 1 1 NO TAG20170526T233127
660 B F A DISK 26-MAY-17 1 1 NO TAG20170526T233128
661 B A A DISK 27-MAY-17 1 1 NO TAG20170527T233004
663 B F A DISK 27-MAY-17 1 1 NO TAG20170527T233019
664 B F A DISK 27-MAY-17 1 1 NO TAG20170527T233019
666 B A A DISK 27-MAY-17 1 1 NO TAG20170527T233127
667 B F A DISK 27-MAY-17 1 1 NO TAG20170527T233129
669 B A A DISK 28-MAY-17 1 1 NO TAG20170528T233003
670 B F A DISK 28-MAY-17 1 1 NO TAG20170528T233019
671 B F A DISK 28-MAY-17 1 1 NO TAG20170528T233019
673 B A A DISK 28-MAY-17 1 1 NO TAG20170528T233127
674 B F A DISK 28-MAY-17 1 1 NO TAG20170528T233128
675 B A A DISK 29-MAY-17 1 1 NO TAG20170529T233003
676 B A A DISK 29-MAY-17 1 1 NO TAG20170529T233003
677 B F A DISK 29-MAY-17 1 1 NO TAG20170529T233019
678 B F A DISK 29-MAY-17 1 1 NO TAG20170529T233019
679 B F A DISK 29-MAY-17 1 1 NO TAG20170529T233019
680 B A A DISK 29-MAY-17 1 1 NO TAG20170529T233127
681 B F A DISK 29-MAY-17 1 1 NO TAG20170529T233128
682 B A A DISK 30-MAY-17 1 1 NO TAG20170530T233003
683 B A A DISK 30-MAY-17 1 1 NO TAG20170530T233003
684 B F A DISK 30-MAY-17 1 1 NO TAG20170530T233018
685 B F A DISK 30-MAY-17 1 1 NO TAG20170530T233018
686 B F A DISK 30-MAY-17 1 1 NO TAG20170530T233018
687 B A A DISK 30-MAY-17 1 1 NO TAG20170530T233127
688 B F A DISK 30-MAY-17 1 1 NO TAG20170530T233128
689 B A A DISK 31-MAY-17 1 1 NO TAG20170531T233003
690 B A A DISK 31-MAY-17 1 1 NO TAG20170531T233003
691 B F A DISK 31-MAY-17 1 1 NO TAG20170531T233019
692 B F A DISK 31-MAY-17 1 1 NO TAG20170531T233019
693 B F A DISK 31-MAY-17 1 1 NO TAG20170531T233019
694 B A A DISK 31-MAY-17 1 1 NO TAG20170531T233127
695 B F A DISK 31-MAY-17 1 1 NO TAG20170531T233129
696 B A A DISK 01-JUN-17 1 1 NO TAG20170601T233004
697 B A A DISK 01-JUN-17 1 1 NO TAG20170601T233004
698 B A A DISK 01-JUN-17 1 1 NO TAG20170601T233004
699 B F A DISK 01-JUN-17 1 1 NO TAG20170601T233020
700 B F A DISK 01-JUN-17 1 1 NO TAG20170601T233020
701 B F A DISK 01-JUN-17 1 1 NO TAG20170601T233020
702 B A A DISK 01-JUN-17 1 1 NO TAG20170601T233129
703 B F A DISK 01-JUN-17 1 1 NO TAG20170601T233130
704 B A A DISK 02-JUN-17 1 1 NO TAG20170602T233004
705 B A A DISK 02-JUN-17 1 1 NO TAG20170602T233004
706 B F A DISK 02-JUN-17 1 1 NO TAG20170602T233029
707 B F A DISK 02-JUN-17 1 1 NO TAG20170602T233029
708 B F A DISK 02-JUN-17 1 1 NO TAG20170602T233029
709 B A A DISK 02-JUN-17 1 1 NO TAG20170602T233137
710 B F A DISK 02-JUN-17 1 1 NO TAG20170602T233139
711 B A A DISK 03-JUN-17 1 1 NO TAG20170603T233004
712 B A A DISK 03-JUN-17 1 1 NO TAG20170603T233004
713 B A A DISK 03-JUN-17 1 1 NO TAG20170603T233004
714 B F A DISK 03-JUN-17 1 1 NO TAG20170603T233031
715 B F A DISK 03-JUN-17 1 1 NO TAG20170603T233031
716 B F A DISK 03-JUN-17 1 1 NO TAG20170603T233031
717 B A A DISK 03-JUN-17 1 1 NO TAG20170603T233139
718 B F A DISK 03-JUN-17 1 1 NO TAG20170603T233140
719 B A A DISK 04-JUN-17 1 1 NO TAG20170604T233004
720 B A A DISK 04-JUN-17 1 1 NO TAG20170604T233004
721 B F A DISK 04-JUN-17 1 1 NO TAG20170604T233029
722 B F A DISK 04-JUN-17 1 1 NO TAG20170604T233029
723 B F A DISK 04-JUN-17 1 1 NO TAG20170604T233029
724 B A A DISK 04-JUN-17 1 1 NO TAG20170604T233138
725 B F A DISK 04-JUN-17 1 1 NO TAG20170604T233139
RMAN>
2.指定时间恢复库
run{
sql 'alter session set nls_date_format="yyyy-mm-dd hh24:mi:ss"';
set until time "to_date('2017-05-31 00:00:00','yyyy-mm-dd hh24:mi:ss')";
restore database;
recover database;
alter database open resetlogs;
}
结论:对整库可实现指定时间恢复