不完全恢复 set until scn scn编号 set until time|timestamp ... 最常用的 set until logseq 不完全恢复示例： SQL conn scott/tiger Connected. SQL select to_char(sysdate,yyyy-mm-dd hh24:mi:ss) from dual; TO_CHAR(SYSDATE,YY ------------------- 201
不完全恢复set until scn
set until time|timestamp ... 最常用的
set until logseq
不完全恢复示例：
SQL> conn scott/tiger
Connected.
SQL> select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') from dual;
TO_CHAR(SYSDATE,'YY
-------------------
2014-11-06 18:32:14
SQL> drop table emp purge;
table dropped.
删除该表后做不完全恢复才能使该表执行查询，否则不行的噢噢
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SQL> select group#,status from v$log;
GROUP# STATUS
---------- ----------------
1 INACTIVE
2 INACTIVE
3 CURRENT
SQL> select member from v$logfile;
MEMBER
--------------------------------------------------------------------------------
/u01/oracle/oradata/jadl10g/redo03.log
/u01/oracle/oradata/jadl10g/redo02.log
/u01/oracle/oradata/jadl10g/redo01.log
SQL> exec dbms_logmnr.add_logfile('/u01/oracle/oradata/jadl10g/redo03.log');
PL/SQL procedure successfully completed.
SQL> execute dbms_logmnr.start_logmnr(options=>dbms_logmnr.dict_from_online_catalog);
PL/SQL proc【本文来自鸿网互联 (http://www.68idc.cn)】edure successfully completed.
SQL> select scn,to_char(timestamp,'yyyy-mm-dd hh24:mi:ss') time,sql_redo from v$logmnr_contents where table_name='EMP';
SCN TIME
---------- -------------------
SQL_REDO
--------------------------------------------------------------------------------
483041 2014-11-06 18:32:29
drop table emp purge;
SQL> exec dbms_logmnr.end_logmnr;
PL/SQL procedure successfully completed.
[oracle@oracle ~]$ rman target /
Recovery Manager: Release 10.2.0.5.0 - Production on Thu Nov 6 19:37:08 2014
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database: JADL10G (DBID=2011530396)
RMAN> shutdown immediate
using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down
RMAN> startup mount
connected to target database (not started)
Oracle instance started
database mounted
Total System Global Area 599785472 bytes
Fixed Size 2098112 bytes
Variable Size 163580992 bytes
Database Buffers 427819008 bytes
Redo Buffers 6287360 bytes
RMAN> run{
2> set until time "to_date('2014-11-06 18:32:28','yyyy-mm-dd hh24:mi:ss')"; --- set until scn 122222
3> restore database;
4> recover database;
5> alter database open resetlogs;
6> }
executing command: SET until clause
Starting restore at 06-NOV-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=155 devtype=DISK
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /u01/oracle/oradata/jadl10g/system01.dbf
restoring datafile 00002 to /u01/oracle/oradata/jadl10g/undotbs01.dbf
restoring datafile 00003 to /u01/oracle/oradata/jadl10g/sysaux01.dbf
restoring datafile 00004 to /u01/oracle/oradata/jadl10g/users01.dbf
restoring datafile 00005 to /u01/oracle/oradata/jadl10g/example01.dbf
channel ORA_DISK_1: reading from backup piece /u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_nnndf_TAG20141106T160359_b5pbvjts_.bkp
channel ORA_DISK_1: restored backup piece 1
piece handle=/u01/oracle/flash_recovery_area/JADL10G/backupset/2014_11_06/o1_mf_nnndf_TAG20141106T160359_b5pbvjts_.bkp tag=TAG20141106T160359
channel ORA_DISK_1: restore complete, elapsed time: 00:00:45
Finished restore at 06-NOV-14
Starting recover at 06-NOV-14
using channel ORA_DISK_1
starting media recovery
media recovery complete, elapsed time: 00:00:04
Finished recover at 06-NOV-14
database opened
此时执行如下操作发现该表是存在的：
select * from scott.emp;
