ORACLE RMAN 各種場景恢復
阿新 • • 發佈：2018-12-07
--恢復整個資料庫
run {
shutdown immediate;
startup mount;
restore database;
recover database;
alter database open;
}
--恢復表空間users
run {
sql 'alter tablespace users offline';
restore tablespace users;
recover tablespace users;
sql 'alter tablespace data online';
}
--恢復資料檔案
適用所有表空間資料檔案
run{
shutdown immediate;
startup mount;
restore datafile '/u01/app/oracle/oradata/data01.dbf';
recover datafile '/u01/app/oracle/oradata/data01.dbf';
alter database open;
}
非system表空間的資料檔案，也可以直接在open狀態下restore和recover
run {
sql 'alter database datafile 6 offline';
restore datafile 6;
recover datafile 6;
sql 'alter database datafile 6 online';
}
--臨時表空間損壞
重新建立一個臨時表空間
SQL> create temporary tablespace temp1
tempfile '/u01/app/oracle/oradata/test10g/temp101.dbf' size 200M ;
將建好的TEMP1表空間設定為資料庫預設的臨時表空間
SQL> alter database default temporary tablespace temp1;
DROP掉舊的TEMP的表空間
SQL> drop tablespace temp including contents and datafiles;
--全部控制檔案損壞
run {
shutdown immediate;
startup nomount;
set dbid=1187100180;
restore controlfile from '/u01/backup/20131202_TEST11G_64.bak';
alter database mount;
recover database;
alter database open resetlogs;
}
開啟後對資料庫做一次全備份
--spfile損壞
run {
shutdown immediate;
startup nomount;
set dbid=1176041295;
restore spfile from '/u01/backup/20131202_TEST11G_64.bak';
shutdown immediate;
startup;
}
--非當前日誌成員損壞
SQL> startup 不報錯
SQL> select status,member from v$logfile;
SQL> alter database drop logfile member '/u01/app/oracle/oradata/test11g/redolog3a.log';
SQL> alter database add logfile member '/u01/app/oracle/oradata/test11g/redolog3a.log' to group 1;
--當前日誌成員損壞
SQL> startup 不報錯