• 基于scn号恢复oracle数据库测试


    oracle11g 数据库 

    RMAN> backup database plus archivelog delete all input; (首先做一次数据库全备)

    [oracle@linux ~]$ sqlplus / as sysdba
    SQL*Plus: Release 11.2.0.4.0 Production on Mon Jul 16 16:52:01 2018
    Copyright (c) 1982, 2013, Oracle. All rights reserved.
    Connected to:
    Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    SYS@testdb> conn scott/oracle 连接到数据库scott用户,新建一张表格
    Connected.
    SCOTT@testdb> create table t1 (x int);
    Table created.
    SCOTT@testdb> insert into t1 values (1);
    1 row created.
    SCOTT@testdb> commit ; (表格中插入数据,提交
    Commit complete.
    SCOTT@testdb> select * from t1;
    X
    ----------
    1
    SCOTT@testdb> conn / as sysdba
    Connected.
    SYS@testdb> select timestamp_to_scn(sysdate) from v$database; 查看当前状态的SCN号
    TIMESTAMP_TO_SCN(SYSDATE)
    -------------------------
    1026157
    SYS@testdb>
    SYS@testdb> conn scott/oracle
    Connected.
    SCOTT@testdb> insert into t1 values (2);
    1 row created.
    SCOTT@testdb> commit ;
    Commit complete.
    SCOTT@testdb> select * from t1;
    X
    ----------
    1
    2
    SCOTT@testdb> conn / as sysdba
    Connected.
    SYS@testdb> shutdown immediate;
    Database closed.
    Database dismounted.
    ORACLE instance shut down.
    SYS@testdb> startup mount;
    ORACLE instance started.
    Total System Global Area 1603411968 bytes
    Fixed Size 2253664 bytes
    Variable Size 1006636192 bytes
    Database Buffers 587202560 bytes
    Redo Buffers 7319552 bytes
    Database mounted.
    SYS@testdb>
    SYS@testdb> quit
    Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    [oracle@linux ~]$ rman target /
    Recovery Manager: Release 11.2.0.4.0 - Production on Mon Jul 16 16:58:23 2018
    Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
    connected to target database: TESTDB (DBID=2764677489, not open)
    RMAN> run{ (基于SCN号恢复数据库到scn所指状态)
    2> set until scn = 1026157;
    3> restore database;
    4> recover database;
    5> alter database open resetlogs;
    6> }
    executing command: SET until clause
    Starting restore at 2018-07-16 16:59:43
    using target database control file instead of recovery catalog
    allocated channel: ORA_DISK_1
    channel ORA_DISK_1: SID=63 device type=DISK
    channel ORA_DISK_1: starting datafile backup set restore
    channel ORA_DISK_1: specifying datafile(s) to restore from backup set
    channel ORA_DISK_1: restoring datafile 00001 to /u01/app/oracle/oradata/TESTDB/datafile/o1_mf_system_fnhjdl8q_.dbf
    channel ORA_DISK_1: restoring datafile 00002 to /u01/app/oracle/oradata/TESTDB/datafile/o1_mf_sysaux_fnhjdl9x_.dbf
    channel ORA_DISK_1: restoring datafile 00003 to /u01/app/oracle/oradata/TESTDB/datafile/o1_mf_undotbs1_fnhjdlb1_.dbf
    channel ORA_DISK_1: restoring datafile 00004 to /u01/app/oracle/oradata/TESTDB/datafile/o1_mf_users_fnhjdlbo_.dbf
    channel ORA_DISK_1: restoring datafile 00005 to /u01/app/oracle/oradata/TESTDB/datafile/o1_mf_example_fnhjj8l9_.dbf
    channel ORA_DISK_1: reading from backup piece /u01/app/oracle/fast_recovery_area/TESTDB/backupset/2018_07_16/o1_mf_nnndf_TAG20180716T164512_fnrprryw_.bkp
    channel ORA_DISK_1: piece handle=/u01/app/oracle/fast_recovery_area/TESTDB/backupset/2018_07_16/o1_mf_nnndf_TAG20180716T164512_fnrprryw_.bkp tag=TAG20180716T164512
    channel ORA_DISK_1: restored backup piece 1
    channel ORA_DISK_1: restore complete, elapsed time: 00:02:06
    Finished restore at 2018-07-16 17:01:50
    Starting recover at 2018-07-16 17:01:50
    using channel ORA_DISK_1
    starting media recovery
    media recovery complete, elapsed time: 00:00:02
    Finished recover at 2018-07-16 17:01:52
    database opened
    RMAN>
    RMAN> quit
    Recovery Manager complete.
    [oracle@linux ~]$ sqlplus / as sysdba
    SQL*Plus: Release 11.2.0.4.0 Production on Mon Jul 16 17:05:00 2018
    Copyright (c) 1982, 2013, Oracle. All rights reserved.
    Connected to:
    Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    SYS@testdb> conn scott/oracle
    Connected.
    SCOTT@testdb> select * from t1; (查看,已经恢复)
    X
    ----------
    1
    SCOTT@testdb>
    SCOTT@testdb> conn / as sysdba
    Connected.
    SYS@testdb> select timestamp_to_scn(sysdate) from v$database;
    TIMESTAMP_TO_SCN(SYSDATE)
    -------------------------
    1026598
    SYS@testdb>
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  • 原文地址:https://www.cnblogs.com/Chaos-oaa/p/9548381.html
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