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Oracle 备份与恢复学习笔记（6_1）

發布時間：2025/3/20 编程问答 19 豆豆

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第六章：手工不完全恢復

1、不完全恢復的特點：讓整個database 回到過去某個時間點，不能避免數據丟失

2、不完全恢復（Incomplete recover）使用環境：
?????? 1）過去的某個時間點重要的table被破壞
?????? 2）在做完全恢復時，丟失了歸檔日志或當前 online redo log
?????? 3）當誤刪除了表空間（有備份）
?????? 4）丟失了所有的控制文件，用備份的控制文件恢復
???????
????????
3、不完全恢復的類型：
????? 1）基于時間點或基于change （scn）的不完全恢復：用于恢復過去時間點誤操作的table
????? 2）基于cancel ：用于歸檔日志或當前redo log 丟失，不能做完全恢復
????? 3）基于備份的controlfile：用于表空間的恢復
?????

4、不完全恢復的操作步驟：
????? 1）先對現在的database做全備
????? 2）通過logmnr 找到誤操作的時間點
????? 3）轉儲所有的datafile
????? 4）在mount狀態下，對database做recover，恢復到過去的時間點
????? 5）將恢復出來的table做邏輯備份
????? 6）再對database做完全恢復
??????
5、logminer 工具的使用
???? -------對redo log 進行挖掘，找出在某個時間點所作的DDL 或DML 操作（包括：時間點、datablock scn 、sql語句）
?? 1）對DML 分析
???
?? 04:56:30 SQL> select * from test;???????????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
???????? 1
???????? 2
???????? 3
???????? 4
???????? 5
???????? 6
???????? 7
???????? 8

8 rows selected.

04:56:40 SQL> delete from test;?????????????????????????????????????????????????????????????????????????????????????????????????????????

8 rows deleted.

04:56:48 SQL> commit;???????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Commit complete.

04:56:50 SQL> insert into test values (111);????????????????????????????????????????????????????????????????????????????????????????????

1 row created.

04:57:44 SQL> insert into test values (222);????????????????????????????????????????????????????????????????????????????????????????????

1 row created.

04:57:47 SQL> insert into test values (333);????????????????????????????????????????????????????????????????????????????????????????????

1 row created.

04:57:49 SQL> commit;???????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Commit complete.

04:57:51 SQL> select * from test;???????????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
?????? 111
?????? 222
?????? 333

04:57:57 SQL>?

04:57:01 SQL> select * from v$log;??????????????????????????????????????????????????????????????????????????????????????????????????????

??? GROUP#??? THREAD#? SEQUENCE#????? BYTES??? MEMBERS ARC STATUS?????????? FIRST_CHANGE# FIRST_TIM
---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ---------
???????? 1????????? 1????????? 4?? 52428800????????? 1 NO? CURRENT??????????????? 1255988 16-AUG-11
???????? 2????????? 1????????? 2?? 52428800????????? 1 YES INACTIVE?????????????? 1252334 16-AUG-11
???????? 3????????? 1????????? 3?? 52428800????????? 1 YES INACTIVE?????????????? 1255986 16-AUG-11

04:57:06 SQL> alter system archive log current;?????????????????????????????????????????????????????????????????????????????????????????

System altered.

04:57:21 SQL> select * from v$log;??????????????????????????????????????????????????????????????????????????????????????????????????????

??? GROUP#??? THREAD#? SEQUENCE#????? BYTES??? MEMBERS ARC STATUS?????????? FIRST_CHANGE# FIRST_TIM
---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ---------
???????? 1????????? 1????????? 4?? 52428800????????? 1 YES ACTIVE???????????????? 1255988 16-AUG-11
???????? 2????????? 1????????? 5?? 52428800????????? 1 NO? CURRENT??????????????? 1259738 17-AUG-11
???????? 3????????? 1????????? 3?? 52428800????????? 1 YES INACTIVE?????????????? 1255986 16-AUG-11

04:57:22 SQL>

2）啟用logmnr
-------添加database補充日志
04:59:50 SQL> alter database add supplemental log data;????????????????????????

Database altered.

----------查詢日志（歸檔和當前日志）
04:57:21 SQL> select * from v$log;??????????????????????????????????????????????????????????????????????????????????????????????????????

??? GROUP#??? THREAD#? SEQUENCE#????? BYTES??? MEMBERS ARC STATUS?????????? FIRST_CHANGE# FIRST_TIM
---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ---------
???????? 1????????? 1????????? 4?? 52428800????????? 1 YES ACTIVE???????????????? 1255988 16-AUG-11
???????? 2????????? 1????????? 5?? 52428800????????? 1 NO? CURRENT??????????????? 1259738 17-AUG-11
???????? 3????????? 1????????? 3?? 52428800????????? 1 YES INACTIVE?????????????? 1255986 16-AUG-11

05:00:46 SQL> select member from v$logfile;????????????????????????????????????????????????????????????????????????

MEMBER
------------------------------------------------------------------------------------------------------------------------
/u01/app/oracle/oradata/prod/redo03.log
/u01/app/oracle/oradata/prod/redo02.log
/u01/app/oracle/oradata/prod/redo01.log

05:00:47 SQL> select name from v$archived_log;??

NAME
------------------------------------------------------------------------------------------------------------------------
/disk1/arch/prod/arch_38_1_758481658.log
/disk1/arch/prod/arch_39_1_758481658.log
/disk1/arch/prod/arch_40_1_758481658.log
/disk1/arch/prod/arch_41_1_758481658.log
/disk1/arch/prod/arch_42_1_758481658.log
/disk1/arch/prod/arch_43_1_758481658.log
/disk1/arch/prod/arch_44_1_758481658.log
/disk1/arch/prod/arch_45_1_758481658.log
/disk1/arch/prod/arch_46_1_758481658.log
/disk1/arch/prod/arch_2_1_759309442.log
/disk1/arch/prod/arch_3_1_759309442.log
/disk1/arch/prod/arch_4_1_759309442.log

46 rows selected.

----------添加日志，分析
05:00:56 SQL> execute dbms_logmnr.add_logfile(logfilename=>'/disk1/arch/prod/arch_4_1_759309442.log',options=>dbms_logmnr.new);

PL/SQL procedure successfully completed.

05:02:58 SQL> execute dbms_logmnr.add_logfile(logfilename=>'/u01/app/oracle/oradata/prod/redo02.log',options=>dbms_logmnr.addfile);

PL/SQL procedure successfully completed.

----------執行logmnr 分析
05:02:58 SQL>execute dbms_logmnr.start_logmnr(options=>dbms_logmnr.dict_from_online_catalog);

PL/SQL procedure successfully completed.
?
?--------查詢分析結果
?
?05:23:33 SQL> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';????????????????????????????????????????????????????????????????

Session altered.
?????
05:06:13 SQL> COL SQL_REDO FOR A50???????????????????????????????????????????????????????????????????????????????????????????????????????
05:06:21 SQL> R??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
? 1* select username,scn,timestamp,sql_redo from v$logmnr_contents where seg_name='TEST'

USERNAME????????????????????????????? SCN TIMESTAMP?????????? SQL_REDO
------------------------------ ---------- ------------------- --------------------------------------------------
????????????????????????????????? 1259691 2011-08-17 04:56:50 delete from "SCOTT"."TEST" where "ID" = '4' and RO
????????????????????????????????????????????????????????????? WID = 'AAAM3bAACAAAAA/AAA';

????????????????????????????????? 1259691 2011-08-17 04:56:50 delete from "SCOTT"."TEST" where "ID" = '5' and RO
????????????????????????????????????????????????????????????? WID = 'AAAM3bAACAAAAA/AAB';

????????????????????????????????? 1259691 2011-08-17 04:56:50 delete from "SCOTT"."TEST" where "ID" = '6' and RO
????????????????????????????????????????????????????????????? WID = 'AAAM3bAACAAAAA/AAC';

????????????????????????????????? 1259691 2011-08-17 04:56:50 delete from "SCOTT"."TEST" where "ID" = '7' and RO
????????????????????????????????????????????????????????????? WID = 'AAAM3bAACAAAAA/AAD';

05:06:25 SQL>?
?????
---------結束日志分析

05:06:25 SQL> execute dbms_logmnr.end_logmnr;???????????????????????????????????????????????????????????????????????????????????????????

PL/SQL procedure successfully completed.

2）對DDL 操作分析

04:57:57 SQL> drop table test purge;????????????????????????????????????????????????????????????????????????????????????????????????????

Table dropped.

05:09:39 SQL> create table test (id int ) tablespace test;??????????????????????????????????????????????????????????????????????????????

Table created.

05:09:55 SQL> insert into test values (1) ;?????????????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:10:01 SQL> commit;???????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Commit complete.

---------設置logmnr 參數，存放數據字典文件
[oracle@work prod]$ mkdir /home/oracle/logmnr

05:11:28 SQL> show parameter utl????????????????????????????????????????????????????????????????????????????????????????????????????????

NAME???????????????????????????????? TYPE??????? VALUE
------------------------------------ ----------- ------------------------------
create_stored_outlines?????????????? string
utl_file_dir???????????????????????? string
05:11:31 SQL> alter system set utl_file_dir='/home/oracle/logmnr' scope=spfile;?????????????????????????????????????????????????????????

System altered.

05:11:48 SQL> startup force??????????????????????????????????????????????????????????????????????????????????????????????????????????????
ORACLE instance started.

Total System Global Area? 314572800 bytes
Fixed Size????????????????? 1219184 bytes
Variable Size????????????? 79693200 bytes
Database Buffers????????? 230686720 bytes
Redo Buffers??????????????? 2973696 bytes
Database mounted.
Database opened.
05:12:08 SQL> show parameter utl????????????????????????????????????????????????????????????????????????????????????????????????????????

---------建立數據字典文件dict.ora
05:12:13 SQL> execute dbms_logmnr_d.build('dict.ora','/home/oracle/logmnr',dbms_logmnr_d.store_in_flat_file);???????????????????????????

PL/SQL procedure successfully completed.

---------查看日志信息
05:13:46 SQL> col name for a50???????????????????????????????????????????????????????????????????????????????????????????????????????????
05:13:52 SQL> r??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
? 1* select name,sequence# from v$archived_log
NAME??????????????????????????????????????????????? SEQUENCE#
-------------------------------------------------- ----------
/disk1/arch/prod/arch_38_1_758481658.log?????????????????? 38
/disk1/arch/prod/arch_39_1_758481658.log?????????????????? 39
/disk1/arch/prod/arch_40_1_758481658.log?????????????????? 40
/disk1/arch/prod/arch_41_1_758481658.log?????????????????? 41
/disk1/arch/prod/arch_42_1_758481658.log?????????????????? 42
/disk1/arch/prod/arch_43_1_758481658.log?????????????????? 43
/disk1/arch/prod/arch_44_1_758481658.log?????????????????? 44
/disk1/arch/prod/arch_45_1_758481658.log?????????????????? 45
/disk1/arch/prod/arch_46_1_758481658.log?????????????????? 46
/disk1/arch/prod/arch_2_1_759309442.log???????????????????? 2
/disk1/arch/prod/arch_3_1_759309442.log???????????????????? 3
/disk1/arch/prod/arch_4_1_759309442.log???????????????????? 4
/disk1/arch/prod/arch_5_1_759309442.log???????????????????? 5

47 rows selected.
???
???? 05:14:24 SQL> select * from v$log;??????????????????????????????????????????????????????????????????????????????????????????????????????

??? GROUP#??? THREAD#? SEQUENCE#????? BYTES??? MEMBERS ARC STATUS?????????? FIRST_CHANGE# FIRST_TIM
---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ---------
???????? 1????????? 1????????? 4?? 52428800????????? 1 YES INACTIVE?????????????? 1255988 16-AUG-11
???????? 2????????? 1????????? 5?? 52428800????????? 1 YES INACTIVE?????????????? 1259738 17-AUG-11
???????? 3????????? 1????????? 6?? 52428800????????? 1 NO? CURRENT??????????????? 1280754 17-AUG-11

? 05:14:38 SQL> col member for a60?????????????????????????????????????????????????????????????????????????????????????????????????????????
05:14:43 SQL>?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
? 1* select group#,member from v$logfile

??? GROUP# MEMBER
---------- ------------------------------------------------------------
???????? 3 /u01/app/oracle/oradata/prod/redo03.log
???????? 2 /u01/app/oracle/oradata/prod/redo02.log
???????? 1 /u01/app/oracle/oradata/prod/redo01.log

05:14:43 SQL>???

-------------添加日志分析

05:14:43 SQL> execute dbms_logmnr.add_logfile(logfilename=>'/u01/app/oracle/oradata/prod/redo03.log',options=>dbms_logmnr.new);?????????

PL/SQL procedure successfully completed.

05:20:59 SQL> execute dbms_logmnr.add_logfile(logfilename=>'/disk1/arch/prod/arch_5_1_759309442.log',options=>dbms_logmnr.addfile);?????

PL/SQL procedure successfully completed.

?
?------------執行分析

05:16:08 SQL> execute dbms_logmnr.start_logmnr(dictfilename=>'/home/oracle/logmnr/dict.ora',options=>dbms_logmnr.ddl_dict_tracking);????

PL/SQL procedure successfully completed.

----------查看分析結果

05:23:33 SQL> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';????????????????????????????????????????????????????????????????

Session altered.

05:22:55 SQL> select username,scn,timestamp,sql_redo from v$logmnr_contents??????????????????????????????????????????????????????????????
05:22:57?? 2? WHERE USERNAME ='SCOTT' and lower(sql_redo) like '%table%';???????????????????????????????????????????????????????????????

USERNAME????????????????????????????? SCN TIMESTAMP?????????? SQL_REDO
------------------------------ ---------- ------------------- --------------------------------------------------
SCOTT???????????????????????????? 1260664 2011-08-17 05:09:38 drop table test purge;
SCOTT???????????????????????????? 1260698 2011-08-17 05:09:55 create table test (id int ) tablespace test;

05:23:33 SQL>

05:06:25 SQL> execute dbms_logmnr.end_logmnr;???????????????????????????????????????????????????????????????????????????????????????????

PL/SQL procedure successfully completed.

不完全恢復案例：

案例1：

------------恢復過去某個時間點誤操作的table
1）基于時間點
05:06:13 SQL> COL SQL_REDO FOR A50???????????????????????????????????????????????????????????????????????????????????????????????????????
05:06:21 SQL> R??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
? 1* select username,scn,timestamp,sql_redo from v$logmnr_contents where seg_name='TEST'

????????????????????????????????? 1259691 2011-08-17 04:56:50 delete from "SCOTT"."TEST" where "ID" = '8' and RO
????????????????????????????????????????????????????????????? WID = 'AAAM3bAACAAAAA/AAE';
??????????????????????????????????????????????????????????????
???? ------通過以上logmnr 分析，將test表恢復到delete 之前（time：2011-08-17 04:56:50）
?????
?????
???? 05:33:23 SQL> select * from test;???????????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
???????? 1
?????????
? ----------test 表現有的數據
??
----------將database啟動到mount ，進行restore 和recover
05:35:38 SQL> conn /as sysdba????????????????????????????????????????????????????????????????????????????????????????????????????????????
Connected.
05:35:46 SQL>?
05:35:46 SQL> shutdown immediate?????????????????????????????????????????????????????????????????????????????????????????????????????????
Database closed.
Database dismounted.
ORACLE instance shut down.
05:36:14 SQL>?
05:36:14 SQL> startup mount??????????????????????????????????????????????????????????????????????????????????????????????????????????????
ORACLE instance started.

Total System Global Area? 314572800 bytes
Fixed Size????????????????? 1219184 bytes
Variable Size????????????? 71304592 bytes
Database Buffers????????? 239075328 bytes
Redo Buffers??????????????? 2973696 bytes
Database mounted.
05:37:18 SQL>?
----------restore 所有的datafile?
[oracle@work ~]$ cp /disk1/backup/prod/close_bak/*.dbf /u01/app/oracle/oradata/prod/

---------基于時間的恢復（時間點為logmnr查詢的時間）

05:40:13 SQL> alter session set nls_date_format='yyyy-mm-dd hh24:mi:ss';????????????????????????????????????????????????????????????????

Session altered.
05:41:05 SQL> recover database until time '2011-08-17 04:56:50';?????????????????????????????????????????????????????????????????????????
Media recovery complete.

查看告警日志：
ALTER DATABASE RECOVER? database until time '2011-08-17 04:56:50'??
Wed Aug 17 05:41:10 2011
Media Recovery Start
Wed Aug 17 05:41:10 2011
Recovery of Online Redo Log: Thread 1 Group 1 Seq 4 Reading mem 0
? Mem# 0 errs 0: /u01/app/oracle/oradata/prod/redo01.log
Wed Aug 17 05:41:12 2011
Incomplete Recovery applied until change 1259690
Wed Aug 17 05:41:12 2011
Media Recovery Complete (prod)
Completed: ALTER DATABASE RECOVER? database until time '2011-08-17 04:56:50'??
Wed Aug 17 05:41:59 2011

-----------驗證

05:41:13 SQL> alter database open resetlogs;????????????????????????????????????????????????????????????????????????????????????????????

Database altered.

05:42:23 SQL> select * from scott.test;?????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
???????? 1
???????? 2
???????? 3
???????? 4
???????? 5
???????? 6
???????? 7
???????? 8

8 rows selected.

案例2：
-----------恢復過去某個時間點誤操作的表
1）基于change （scn）
05:45:41 SQL> truncate table scott.test;????????????????????????????????????????????????????????????????????????????????????????????????

Table truncated.

05:45:52 SQL> insert into scott.test values (11);???????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:46:05 SQL> insert into scott.test values (22);???????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:46:07 SQL> insert into scott.test values (33);???????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:46:09 SQL> commit;???????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Commit complete.

05:46:11 SQL> select * from scott.test;?????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
??????? 11
??????? 22
??????? 33

05:46:16 SQL>

--------通過logmr 分析出誤操作的scn
05:52:30 SQL> select current_scn from v$database;??????? //datablock 記錄的scn????????????????????????????????????????????????????????????????????????????????

CURRENT_SCN
-----------
??? 1260285
????
?------------test 表里的記錄
?05:52:12 SQL> select * from scott.test;?????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
???????? 1
???????? 2
???????? 3
???????? 4
???????? 5
???????? 6
???????? 7
???????? 8

8 rows selected

05:52:47 SQL> truncate table scott.test;????????????????????????????????????????????????????????????????????????????????????????????????

Table truncated

05:54:18 SQL> insert into scott.test values (11);???????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:54:22 SQL> insert into scott.test values (22);???????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:54:24 SQL> insert into scott.test values (33);???????????????????????????????????????????????????????????????????????????????????????

1 row created.

05:54:25 SQL> commit;???????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Commit complete.

05:54:26 SQL>

進行基于change的恢復：
---------在mount狀態，進行restore 和recover
-------restore 所有的datafile
05:46:16 SQL> startup force mount????????????????????????????????????????????????????????????????????????????????????????????????????????
ORACLE instance started.

Total System Global Area? 314572800 bytes
Fixed Size????????????????? 1219184 bytes
Variable Size????????????? 71304592 bytes
Database Buffers????????? 239075328 bytes
Redo Buffers??????????????? 2973696 bytes
Database mounted.
05:48:07 SQL>
[oracle@work ~]$ cp /disk1/backup/prod/close_bak/*.dbf /u01/app/oracle/oradata/prod/

05:55:07 SQL> select file#,checkpoint_change# from v$datafile;??????????????????????????????????????????????????????????????????????????

???? FILE# CHECKPOINT_CHANGE#
---------- ------------------
???????? 1??????????? 1260061
???????? 2??????????? 1260061
???????? 3??????????? 1260061
???????? 4??????????? 1260061
???????? 5??????????? 1260061
???????? 6??????????? 1260061
???????? 7??????????? 1260061
???????? 8??????????? 1260061
???????? 9??????????? 1260061

9 rows selected.

05:57:00 SQL> select file#,checkpoint_change# from v$datafile_header;???????????????????????????????????????????????????????????????????

???? FILE# CHECKPOINT_CHANGE#
---------- ------------------
???????? 1??????????? 1258960
???????? 2??????????? 1258960
???????? 3??????????? 1258960
???????? 4??????????? 1258960
???????? 5??????????? 1258960
???????? 6??????????? 1258960
???????? 7??????????? 1258960
???????? 8??????????? 1258960
???????? 9??????????? 1258960

9 rows selected.

----------基于change 的recover

05:57:03 SQL> recover database until change 1260285;?????????????????????????????????????????????????????????????????????????????????????
ORA-00279: change 1258960 generated at 08/17/2011 04:37:14 needed for thread 1
ORA-00289: suggestion : /disk1/arch/prod/arch_4_1_759309442.log
ORA-00280: change 1258960 for thread 1 is in sequence #4

05:57:33 Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
auto?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
ORA-00279: change 1259691 generated at 08/17/2011 05:41:59 needed for thread 1
ORA-00289: suggestion : /disk1/arch/prod/arch_1_1_759390119.log
ORA-00280: change 1259691 for thread 1 is in sequence #1

ORA-00279: change 1260023 generated at 08/17/2011 05:44:31 needed for thread 1
ORA-00289: suggestion : /disk1/arch/prod/arch_2_1_759390119.log
ORA-00280: change 1260023 for thread 1 is in sequence #2
ORA-00278: log file '/disk1/arch/prod/arch_1_1_759390119.log' no longer needed for this recovery

ORA-00279: change 1260025 generated at 08/17/2011 05:44:32 needed for thread 1
ORA-00289: suggestion : /disk1/arch/prod/arch_3_1_759390119.log
ORA-00280: change 1260025 for thread 1 is in sequence #3
ORA-00278: log file '/disk1/arch/prod/arch_2_1_759390119.log' no longer needed for this recovery

Log applied.
Media recovery complete.
05:57:44 SQL>

查看告警日志：

ALTER DATABASE RECOVER? database until change 1260285??
Wed Aug 17 05:57:32 2011
Media Recovery Start
Media Recovery start incarnation depth : 2, target inc# : 5, irscn : 1259690
ORA-279 signalled during: ALTER DATABASE RECOVER? database until change 1260285? ...
Wed Aug 17 05:57:38 2011
ALTER DATABASE RECOVER??? CONTINUE DEFAULT??
Wed Aug 17 05:57:38 2011
Media Recovery Log /disk1/arch/prod/arch_4_1_759309442.log
ORA-279 signalled during: ALTER DATABASE RECOVER??? CONTINUE DEFAULT? ...
Wed Aug 17 05:57:40 2011
ALTER DATABASE RECOVER??? CONTINUE DEFAULT??
Wed Aug 17 05:57:40 2011
Media Recovery Log /disk1/arch/prod/arch_1_1_759390119.log
ORA-279 signalled during: ALTER DATABASE RECOVER??? CONTINUE DEFAULT? ...
Wed Aug 17 05:57:40 2011
ALTER DATABASE RECOVER??? CONTINUE DEFAULT??
Wed Aug 17 05:57:40 2011
Media Recovery Log /disk1/arch/prod/arch_2_1_759390119.log
ORA-279 signalled during: ALTER DATABASE RECOVER??? CONTINUE DEFAULT? ...
Wed Aug 17 05:57:41 2011
ALTER DATABASE RECOVER??? CONTINUE DEFAULT??
Wed Aug 17 05:57:41 2011
Media Recovery Log /disk1/arch/prod/arch_3_1_759390119.log
Wed Aug 17 05:57:41 2011
Recovery of Online Redo Log: Thread 1 Group 2 Seq 1 Reading mem 0
? Mem# 0 errs 0: /u01/app/oracle/oradata/prod/redo02.log
Wed Aug 17 05:57:41 2011
Recovery of Online Redo Log: Thread 1 Group 1 Seq 2 Reading mem 0
? Mem# 0 errs 0: /u01/app/oracle/oradata/prod/redo01.log
Wed Aug 17 05:57:41 2011
Recovery of Online Redo Log: Thread 1 Group 3 Seq 3 Reading mem 0
? Mem# 0 errs 0: /u01/app/oracle/oradata/prod/redo03.log
Wed Aug 17 05:57:41 2011
Incomplete Recovery applied until change 1260286
Wed Aug 17 05:57:41 2011
Media Recovery Complete (prod)
Completed: ALTER DATABASE RECOVER??? CONTINUE DEFAULT?

--------驗證

05:57:44 SQL> alter database open resetlogs;????????????????????????????????????????????????????????????????????????????????????????????

Database altered.

05:59:46 SQL> select * from scott.test;?????????????????????????????????????????????????????????????????????????????????????????????????

??????? ID
----------
???????? 1
???????? 2
???????? 3
???????? 4
???????? 5
???????? 6
???????? 7
???????? 8

8 rows selected.

本文轉自客居天涯 51CTO博客，原文鏈接：http://blog.51cto.com/tiany/792477，如需轉載請自行聯系原作者

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