Oracle 命令大汇总-备份与恢复

第十二章: BACKUP and RECOVERY 

    1. v$sga,v$instance,v$process,v$bgprocess,v$database,v$datafile,v$sgastat 

    2. Rman need set dbwr_IO_slaves or backup_tape_IO_slaves and large_pool_size 

    3. Monitoring Parallel Rollback 

    > v$fast_start_servers , v$fast_start_transactions 

    4.perform a closed database backup (noarchivelog) 

    > shutdown immediate 

    > cp files /backup/ 

    > startup 

    5.restore to a different location 

    > connect system/manager as sysdba 

    > startup mount 

    > alter database rename file '/disk1/../user.dbf'to '/disk2/../user.dbf'; 

    > alter database open; 

    6.recover syntax 

    --recover a mounted database 

    >recover database; 

    >recover datafile '/disk1/data/df2.dbf'; 

    >alter database recover database; 

    --recover an opened database 

    >recover tablespace user_data; 

    >recover datafile 2; 

    >alter database recover datafile 2; 

    7.how to apply redo log files automatically 

    >set autorecovery on 

    >recover automatic datafile 4; 

    8.complete recovery: 

    --method 1(mounted databae) 

    >copy c:\backup\user.dbf c:\oradata\user.dbf 

    >startup mount 

    >recover datafile 'c:\oradata\user.dbf; 

    >alter database open; 

    --method 2(opened database,initially opened,not system or rollback datafile) 

    >copy c:\backup\user.dbf c:\oradata\user.dbf (alter tablespace offline) 

    >recover datafile 'c:\oradata\user.dbf' or 

    >recover tablespace user_data; 

    >alter database datafile 'c:\oradata\user.dbf' online or 

    >alter tablespace user_data online; 

    --method 3(opened database,initially closed not system or rollback datafile) 

    >startup mount 

    >alter database datafile 'c:\oradata\user.dbf' offline; 

    >alter database open 

    >copy c:\backup\user.dbf d:\oradata\user.dbf 

    >alter database rename file 'c:\oradata\user.dbf'to 'd:\oradata\user.dbf' 

    >recover datafile 'e:\oradata\user.dbf' or recover tablespace user_data; 

    >alter tablespace user_data online; 

    --method 4(loss of data file with no backup and have all archive log) 

    >alter tablespace user_data offline immediate; 

    >alter database create datafile 'd:\oradata\user.dbf'as 'c:\oradata\user.dbf'' 

    >recover tablespace user_data; 

    >alter tablespace user_data online 

    5.perform an open database backup 

    > alter tablespace user_data begin backup; 

    > copy files /backup/ 

    > alter database datafile '/c:/../data.dbf' end backup; 

    > alter system switch logfile; 

    6.backup a control file 

    > alter database backup controlfile to 'control1.bkp'; 

    > alter database backup controlfile to trace; 

    7.recovery (noarchivelog mode) 

    > shutdown abort 

    > cp files 

    > startup 

    8.recovery of file in backup mode 

    >alter database datafile 2 end backup; 

    9.clearing redo log file 

    >alter database clear unarchived logfile group 1; 

    >alter database clear unarchived logfile group 1 unrecoverable datafile; 

    10.redo log recovery 

    >alter database add logfile group 3 'c:\oradata\redo03.log'size 1000k; 

    >alter database drop logfile group 1; 

    >alter database open; 

    or >cp c:\oradata\redo02.log' c:\oradata\redo01.log 

    >alter database clear logfile 'c:\oradata\log01.log';