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丟失了所有控制文件副本后進(jìn)行恢復(fù)以trace文件恢復(fù)

來源:懂視網(wǎng) 責(zé)編:小采 時間:2020-11-09 14:39:35
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丟失了所有控制文件副本后進(jìn)行恢復(fù)以trace文件恢復(fù)

丟失了所有控制文件副本后進(jìn)行恢復(fù)以trace文件恢復(fù):實驗:基于trace的控制文件重建及數(shù)據(jù)庫回復(fù)(所有控制文件丟失等) 1.測試數(shù)據(jù)的構(gòu)造,創(chuàng)建只讀表空間 create tablespace tbs_users datafile /u01/app/oracle/oradata/PROD/datafile/tbs_users1.dbf size 5m, /u01/a
推薦度:
導(dǎo)讀丟失了所有控制文件副本后進(jìn)行恢復(fù)以trace文件恢復(fù):實驗:基于trace的控制文件重建及數(shù)據(jù)庫回復(fù)(所有控制文件丟失等) 1.測試數(shù)據(jù)的構(gòu)造,創(chuàng)建只讀表空間 create tablespace tbs_users datafile /u01/app/oracle/oradata/PROD/datafile/tbs_users1.dbf size 5m, /u01/a

實驗:基于trace的控制文件重建及數(shù)據(jù)庫回復(fù)(所有控制文件丟失等) 1.測試數(shù)據(jù)的構(gòu)造,創(chuàng)建只讀表空間 create tablespace tbs_users datafile /u01/app/oracle/oradata/PROD/datafile/tbs_users1.dbf size 5m, /u01/app/oracle/oradata/PROD/datafile/tbs_us

實驗:基于trace的控制文件重建及數(shù)據(jù)庫回復(fù)(所有控制文件丟失等)

1.測試數(shù)據(jù)的構(gòu)造,創(chuàng)建只讀表空間
create tablespace tbs_users datafile
'/u01/app/oracle/oradata/PROD/datafile/tbs_users1.dbf' size 5m,
'/u01/app/oracle/oradata/PROD/datafile/tbs_users2.dbf' size 5m;

alter tablesapce tbs_users read only;

2.控制文件的轉(zhuǎn)儲
select name from v$controlfile;
--查看控制文件狀態(tài)

轉(zhuǎn)儲:
oradebug setmypid;
alter database backup controlfile to trace;
oradebug tracefile_name;

3.刪除控制文件
!rm /u01/app/oracle/oradata/PROD/control*.ctl
--若閃回區(qū)也有控制文件副本,一并刪除;

alter system checkpoint;
create tablespace ts1 datafile '/u01/app/oracle/oradata/PROD/datafile/ts1.dbf' size 5m;
--觸發(fā)錯誤
shutdown immeidate/abort
startup
ORA-00205:error in identifying control file;
check alert log for more info;


4.使用轉(zhuǎn)儲的跟蹤文件進(jìn)行控制文件重建
查看跟蹤文件內(nèi)容,確定使用noresetlogs進(jìn)行重建

相關(guān)腳本:
-- Set #1. NORESETLOGS case
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "PROD" NORESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 (
'/u01/app/oracle/oradata/PROD/onlinelog/o1_mf_1_b395d7z0_.log',
'/u01/app/oracle/fast_recovery_area/PROD/onlinelog/o1_mf_1_b395df1j_.log'
) SIZE 50M BLOCKSIZE 512,
GROUP 2 (
'/u01/app/oracle/oradata/PROD/onlinelog/o1_mf_2_b395dlrd_.log',
'/u01/app/oracle/fast_recovery_area/PROD/onlinelog/o1_mf_2_b395dqql_.log'
) SIZE 50M BLOCKSIZE 512,
GROUP 3 (
'/u01/app/oracle/oradata/PROD/onlinelog/o1_mf_3_b395dwfk_.log',
'/u01/app/oracle/fast_recovery_area/PROD/onlinelog/o1_mf_3_b395f1j7_.log'
) SIZE 50M BLOCKSIZE 512

DATAFILE
'/u01/app/oracle/oradata/PROD/datafile/o1_mf_system_b393xosc_.dbf',
'/u01/app/oracle/oradata/PROD/datafile/o1_mf_sysaux_b393xovt_.dbf',
'/u01/app/oracle/oradata/PROD/datafile/o1_mf_undotbs1_b393xq2d_.dbf',
'/u01/app/oracle/oradata/PROD/datafile/o1_mf_users_b393xqpm_.dbf',
'/u01/app/oracle/oradata/PROD/datafile/o1_mf_example_b393xp04_.dbf'
CHARACTER SET AL32UTF8
;

RECOVER DATABASE
--如果數(shù)據(jù)庫非正常關(guān)閉,需要恢復(fù)數(shù)據(jù)庫;

ALTER SYSTEM ARCHIVE LOG ALL;

ALTER DATABASE OPEN;
--如果有創(chuàng)建的測試數(shù)據(jù)文件需要處理,則可以先跳過(以先打開數(shù)據(jù)庫為準(zhǔn));
alter database datafile file_id offline;

ALTER DATABASE RENAME FILE 'MISSING00006'
TO '/u01/app/oracle/oradata/PROD/datafile/tbs_users1.dbf';
ALTER DATABASE RENAME FILE 'MISSING00007'
TO '/u01/app/oracle/oradata/PROD/datafile/tbs_users2.dbf';

ALTER TABLESPACE "TBS_USERS" ONLINE;

ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/PROD/datafile/o1_mf_temp_b29o0g6r_.tmp'
SIZE 20971520 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;


備注:
1.只讀狀態(tài)的表空間,在利用跟蹤文件后,其數(shù)據(jù)文件名稱會發(fā)生變化,需要rename操作;
2.臨時表空間,在利用trace重建控制文件后,其臨時文件會丟失,需要重新添加或重建臨時表空間;
3.在轉(zhuǎn)儲控制文件之后新創(chuàng)建的臨時表空間,當(dāng)我們重建控制文件后,這些表空間的數(shù)據(jù)文件,也需要進(jìn)行處理;
4.可以利用rman中的命令來查看當(dāng)前數(shù)據(jù)庫數(shù)據(jù)文件和臨時文 report schema
5.ODU 數(shù)據(jù)庫恢復(fù)工具

具體實驗:

5.1. 丟失了所有控制文件副本后進(jìn)行恢復(fù)

注 在利用trace備份恢復(fù)控制文件的時候,有以下要特別注意:

- 只讀表空間

- 臨時表空間

- 離線表空間

1) 準(zhǔn)備只讀表空間環(huán)境

SYS@ORA11GR2>create tablespace ts_users datafile '/u01/app/oracle/oradata/ORA11GR2/ts_users01.dbf' size 5m,'/u01/app/oracle/oradata/ORA11GR2/ts_users02.dbf' size 5m;

Tablespace created.

SYS@ORA11GR2>col tablespace_name for a15

SYS@ORA11GR2>select tablespace_name,status from dba_tablespaces;

TABLESPACE_NAME STATUS

--------------- ---------

SYSTEM ONLINE

SYSAUX ONLINE

UNDOTBS1 ONLINE

TEMP ONLINE

USERS ONLINE

EXAMPLE ONLINE

TS_USERS ONLINE

7 rows selected.

SYS@ORA11GR2>

SYS@ORA11GR2>select file_name,status,online_status from dba_data_files;

FILE_NAME STATUS ONLINE_

----------------------------------------------- --------- -------

/u01/app/oracle/oradata/ORA11GR2/users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/system01.dbf AVAILABLE SYSTEM

/u01/app/oracle/oradata/ORA11GR2/example01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/ts_users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/ts_users02.dbf AVAILABLE ONLINE

7 rows selected.

SYS@ORA11GR2>

SYS@ORA11GR2>alter tablespace ts_users read only;

Tablespace altered.

SYS@ORA11GR2>select tablespace_name,status from dba_tablespaces;

TABLESPACE_NAME STATUS

--------------- ---------

SYSTEM ONLINE

SYSAUX ONLINE

UNDOTBS1 ONLINE

TEMP ONLINE

USERS ONLINE

EXAMPLE ONLINE

TS_USERS READ ONLY

7 rows selected.

SYS@ORA11GR2>select file_name,status,online_status from dba_data_files;

FILE_NAME STATUS ONLINE_

----------------------------------------------- --------- -------

/u01/app/oracle/oradata/ORA11GR2/users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/system01.dbf AVAILABLE SYSTEM

/u01/app/oracle/oradata/ORA11GR2/example01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/ts_users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/ts_users02.dbf AVAILABLE ONLINE

7 rows selected.

SYS@ORA11GR2>

2) 查看控制文件位置

SYS@ORA11GR2>select name from v$controlfile;

NAME

--------------------------------------------------------------------------

/u01/app/oracle/oradata/ORA11GR2/control01.ctl

/u01/app/oracle/oradata/ORA11GR2/control02.ctl

SYS@ORA11GR2>

3) 轉(zhuǎn)儲控制文件到trace文件中

SYS@ORA11GR2>oradebug setmypid

Statement processed.

SYS@ORA11GR2>alter database backup controlfile to trace;

Database altered.

SYS@ORA11GR2>oradebug tracefile_name

/u01/app/oracle/diag/rdbms/ora11gr2/ORA11GR2/trace/ORA11GR2_ora_30816.trc

SYS@ORA11GR2>

4) 打開轉(zhuǎn)儲后文件,以下為部分內(nèi)容

[oracle@ocmu ~]$

cat /u01/app/oracle/diag/rdbms/ora11gr2/ORA11GR2/trace/ORA11GR2_ora

……

-- Set #1. NORESETLOGS case

--

-- The following commands will create a new control file and use it

-- to open the database.

-- Data used by Recovery Manager will be lost.

-- Additional logs may be required for media recovery of offline

-- Use this only if the current versions of all online logs are

-- available.

-- After mounting the created controlfile, the following SQL

-- statement will place the database in the appropriate

-- protection mode:

-- ALTER DATABASE SET STANDBY DATABASE TO MAXIMIZE PERFORMANCE

STARTUP NOMOUNT

CREATE CONTROLFILE REUSE DATABASE "ORA11GR2" NORESETLOGS NOARCHIVELOG

MAXLOGFILES 16

MAXLOGMEMBERS 3

MAXDATAFILES 100

MAXINSTANCES 8

MAXLOGHISTORY 292

LOGFILE

GROUP 1 '/u01/app/oracle/oradata/ORA11GR2/redo01.log' SIZE 50M BLOCKSIZE 512,

GROUP 2 '/u01/app/oracle/oradata/ORA11GR2/redo02.log' SIZE 50M BLOCKSIZE 512,

GROUP 3 '/u01/app/oracle/oradata/ORA11GR2/redo03.log' SIZE 50M BLOCKSIZE 512

-- STANDBY LOGFILE

DATAFILE

'/u01/app/oracle/oradata/ORA11GR2/system01.dbf',

'/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf',

'/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf',

'/u01/app/oracle/oradata/ORA11GR2/users01.dbf',

'/u01/app/oracle/oradata/ORA11GR2/example01.dbf'

CHARACTER SET AL32UTF8

;

……

-- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/product/11.2.0/db_1/dbs/arch1_1_694825248.dbf';

-- ALTER DATABASE REGISTER LOGFILE '/u01/app/oracle/product/11.2.0/db_1/dbs/arch1_1_799882343.dbf';

-- Recovery is required if any of the datafiles are restored backups,

-- or if the last shutdown was not normal or immediate.

RECOVER DATABASE

-- Database can now be opened normally.

ALTER DATABASE OPEN;

-- Files in read-only tablespaces are now named.

ALTER DATABASE RENAME FILE 'MISSING00006'

TO '/u01/app/oracle/oradata/ORA11GR2/ts_users01.dbf';

ALTER DATABASE RENAME FILE 'MISSING00007'

TO '/u01/app/oracle/oradata/ORA11GR2/ts_users02.dbf';

-- Online the files in read-only tablespaces.

ALTER TABLESPACE "TS_USERS" ONLINE;

-- Commands to add tempfiles to temporary tablespaces.

-- Online tempfiles have complete space information.

-- Other tempfiles may require adjustment.

ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/ORA11GR2/temp01.dbf'

SIZE 30408704 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;

-- End of tempfile additions.

……

注 在轉(zhuǎn)儲的控制文件中,沒有只讀表空間的內(nèi)容

本測試,是先生成轉(zhuǎn)儲文件,再恢復(fù)的,往往在控制文件丟失之前很少會有人轉(zhuǎn)儲控制文件的(當(dāng)然

了,一般情況都會備份控制文件的),如果沒有轉(zhuǎn)儲控制文件的話,我們也可以在其他數(shù)據(jù)庫中轉(zhuǎn)儲

控制文件,按照目標(biāo)庫的情況進(jìn)行調(diào)整,然后再創(chuàng)建。

5) 手工刪除控制文件

[oracle@ocmu ORA11GR2]$ pwd

/u01/app/oracle/oradata/ORA11GR2

[oracle@ocmu ORA11GR2]$ ls *.ctl

control01.ctl control02.ctl

[oracle@ocmu ORA11GR2]$ rm *.ctl

[oracle@ocmu ORA11GR2]$ ls *.ctl

ls: *.ctl: No such file or directory

[oracle@ocmu ORA11GR2]$

6) 控制文件刪除以后,數(shù)據(jù)庫是可以正常登陸的

[oracle@ocmu ORA11GR2]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Tue Jan 15 16:09:53 2013

Copyright (c) 1982, 2009, Oracle. All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SYS@ORA11GR2>

7) 當(dāng)修改結(jié)構(gòu)信息時,會寫控制文件,我們創(chuàng)建一個表空間,立即報錯

SYS@ORA11GR2> create tablespace ts_idx datafile '/u01/app/oracle/oradata/

ORA11GR2/ts_idx01.dbf' size 10m;

create tablespace ts_idx datafile '/u01/app/oracle/oradata/ORA11GR2/ts_idx01.dbf' size 10m

*

ERROR at line 1:

ORA-00210: cannot open the specified control file

ORA-00202: control file: '/u01/app/oracle/oradata/ORA11GR2/control01.ctl'

ORA-27041: unable to open file

Linux Error: 2: No such file or directory

Additional information: 3

SYS@ORA11GR2>

8) 一致性關(guān)閉數(shù)據(jù)庫已經(jīng)不可能了(控制文件丟失,無法同步SCN),采取強(qiáng)制手段

SYS@ORA11GR2>shutdow immediate;

ORA-00210: cannot open the specified control file

ORA-00202: control file: '/u01/app/oracle/oradata/ORA11GR2/control01.ctl'

ORA-27041: unable to open file

Linux Error: 2: No such file or directory

Additional information: 3

SYS@ORA11GR2>

SYS@ORA11GR2>shutdown abort;

ORACLE instance shut down.

SYS@ORA11GR2>

9) 按照轉(zhuǎn)儲文件中的步驟恢復(fù)控制文件,nomount啟動數(shù)據(jù)庫

SYS@ORA11GR2>startup nomount;

ORACLE instance started.

Total System Global Area 841162752 bytes

Fixed Size 1339768 bytes

Variable Size 494931592 bytes

Database Buffers 339738624 bytes

Redo Buffers 5152768 bytes

SYS@ORA11GR2>

10) 采用NORESETLOGS創(chuàng)建控制文件

SYS@ORA11GR2>CREATE CONTROLFILE REUSE DATABASE "ORA11GR2" NORESETLOGS NOARCHIVELOG

2 MAXLOGFILES 16

3 MAXLOGMEMBERS 3

4 MAXDATAFILES 100

5 MAXINSTANCES 8

6 MAXLOGHISTORY 292

7 LOGFILE

8 GROUP 1 '/u01/app/oracle/oradata/ORA11GR2/redo01.log' SIZE 50M BLOCKSIZE 512,

9 GROUP 2 '/u01/app/oracle/oradata/ORA11GR2/redo02.log' SIZE 50M BLOCKSIZE 512,

10 GROUP 3 '/u01/app/oracle/oradata/ORA11GR2/redo03.log' SIZE 50M BLOCKSIZE 512

11 -- STANDBY LOGFILE

12 DATAFILE

13 '/u01/app/oracle/oradata/ORA11GR2/system01.dbf',

14 '/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf',

15 '/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf',

16 '/u01/app/oracle/oradata/ORA11GR2/users01.dbf',

17 '/u01/app/oracle/oradata/ORA11GR2/example01.dbf'

18 CHARACTER SET AL32UTF8

19 ;

Control file created.

SYS@ORA11GR2>

11) 因為之前shutdown沒有采取一致性關(guān)閉,所以,需要recover database,recover后,可正常open數(shù)據(jù)庫

SYS@ORA11GR2>alter database open;

alter database open

*

ERROR at line 1:

ORA-01113: file 1 needs media recovery

ORA-01110: data file 1: '/u01/app/oracle/oradata/ORA11GR2/system01.dbf'

SYS@ORA11GR2>recover database;

Media recovery complete.

SYS@ORA11GR2>

SYS@ORA11GR2>alter database open;

Database altered.

SYS@ORA11GR2>!ls *.ctl

control01.ctl control02.ctl

SYS@ORA11GR2>

看似已恢復(fù)完成,不過,很清晰的看到,轉(zhuǎn)儲的控制文件中,還有幾步?jīng)]有完成,我們繼續(xù)

12) 再次查看表空間和數(shù)據(jù)文件狀態(tài)

我們可以看到,只讀表空間的狀態(tài)依然是read only,不過數(shù)據(jù)文件的路徑、名字及狀態(tài)都有所變化

SYS@ORA11GR2>select tablespace_name,status from dba_tablespaces;

TABLESPACE_NAME STATUS

--------------- ---------

SYSTEM ONLINE

SYSAUX ONLINE

UNDOTBS1 ONLINE

TEMP ONLINE

USERS ONLINE

EXAMPLE ONLINE

TS_USERS READ ONLY

7 rows selected.

SYS@ORA11GR2>col file_name for a52

SYS@ORA11GR2>select file_name,status,online_status from dba_data_files;

FILE_NAME STATUS ONLINE_

---------------------------------------------------- --------- -------

/u01/app/oracle/oradata/ORA11GR2/example01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/system01.dbf AVAILABLE SYSTEM

/u01/app/oracle/product/11.2.0/db_1/dbs/MISSING00006 AVAILABLE OFFLINE

/u01/app/oracle/product/11.2.0/db_1/dbs/MISSING00007 AVAILABLE OFFLINE

7 rows selected.

SYS@ORA11GR2>

13) 按照轉(zhuǎn)儲的步驟繼續(xù)rename數(shù)據(jù)文件

注:如果不rename數(shù)據(jù)文件的話,數(shù)據(jù)文件是沒法ONLINE的

SYS@ORA11GR2>ALTER DATABASE RENAME FILE 'MISSING00006'

TO '/u01/app/oracle/oradata/ORA11GR2/ts_users01.dbf';

Database altered.

SYS@ORA11GR2>ALTER DATABASE RENAME FILE 'MISSING00007'

TO '/u01/app/oracle/oradata/ORA11GR2/ts_users02.dbf';

Database altered.

SYS@ORA11GR2>

14) 按照轉(zhuǎn)儲步驟,修改表空間online

SYS@ORA11GR2>ALTER TABLESPACE "TS_USERS" ONLINE;

Tablespace altered.

SYS@ORA11GR2>

15) 再次查看表空間、數(shù)據(jù)文件的狀態(tài),已經(jīng)徹底恢復(fù)原貌

SYS@ORA11GR2>select tablespace_name,status from dba_tablespaces;

TABLESPACE_NAME STATUS

--------------- ---------

SYSTEM ONLINE

SYSAUX ONLINE

UNDOTBS1 ONLINE

TEMP ONLINE

USERS ONLINE

EXAMPLE ONLINE

TS_USERS READ ONLY

7 rows selected.

SYS@ORA11GR2>select file_name,status,online_status from dba_data_files;

FILE_NAME STATUS ONLINE_

---------------------------------------------------- --------- -------

/u01/app/oracle/oradata/ORA11GR2/example01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/system01.dbf AVAILABLE SYSTEM

/u01/app/oracle/oradata/ORA11GR2/ts_users01.dbf AVAILABLE ONLINE

/u01/app/oracle/oradata/ORA11GR2/ts_users02.dbf AVAILABLE ONLINE

7 rows selected.

SYS@ORA11GR2>

16) 轉(zhuǎn)儲步驟中還涉及到了臨時表空間,我們驗證一下,重建控制文件后,臨時表空間的情況,沒有任何數(shù)據(jù)文件

SYS@ORA11GR2>select file_name,tablespace_name from dba_temp_files;

no rows selected

SYS@ORA11GR2>

17) 按照轉(zhuǎn)儲中的語句給臨時表空間增加數(shù)據(jù)文件

SYS@ORA11GR2>ALTER TABLESPACE TEMP

ADD TEMPFILE '/u01/app/oracle/oradata/ORA11GR2/temp01.dbf'

SIZE 30408704 REUSE AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M;

Tablespace altered.

SYS@ORA11GR2>

18) 臨時文件已添加成功

SYS@ORA11GR2>select FILE_NAME,TABLESPACE_NAME from dba_temp_files;

FILE_NAME TABLESPACE_NAME

---------------------------------------------------- ---------------

/u01/app/oracle/oradata/ORA11GR2/temp01.dbf TEMP

SYS@ORA11GR2>

至此,控制文件恢復(fù)完畢

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文檔

丟失了所有控制文件副本后進(jìn)行恢復(fù)以trace文件恢復(fù)

丟失了所有控制文件副本后進(jìn)行恢復(fù)以trace文件恢復(fù):實驗:基于trace的控制文件重建及數(shù)據(jù)庫回復(fù)(所有控制文件丟失等) 1.測試數(shù)據(jù)的構(gòu)造,創(chuàng)建只讀表空間 create tablespace tbs_users datafile /u01/app/oracle/oradata/PROD/datafile/tbs_users1.dbf size 5m, /u01/a
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