1 数据文件头部和恢复相关的几个偏移量说明:
ub4 kcvfhcpc @140 0x00000308------检查点计数
ub4 kcvfhccc @148 0x00000307------总是比检查点计算少1
ub4 kcvcptim @492 0x2f9af923-----检查点时间
ub4 kscnbas @484 0x8013ea80-------- scn的低位
ub2 kscnwrp @488 0x0000--------- scn的高位
ub4 kcvfhrlc @112 0x2f9af2a9------resetlogs count
struct kcvfhrls, 8 bytes @116
ub4 kscnbas @116 0x8013e6b3-------- resetlogs scn
ub2 kscnwrp @120 0x0000
如果是resetlogs 方式打开数据库对于recover失败的数据文件其数据文件中偏移量 @140、@148、@492、@484、@112、@116应该和其它不需要恢复的数据文件保持一致
其它情况数据文件中偏移量 可能仅需要@140、@148、@492、@484和其它不需要恢复的数据文件保持一致
2重建控制文件的语句:
[oracle@oracle ~]$ cat /oracle/control.sql
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "CRM" RESETLOGS ARCHIVELOG
MAXLOGFILES 16
MAXLOGMEMBERS 3
MAXDATAFILES 100
MAXINSTANCES 8
MAXLOGHISTORY 292
LOGFILE
GROUP 1 (
'/oracle/app/db1/dbs/log1CRM.dbf',
'/oracle/CRM2/CRM/redo01b.log'
) SIZE 200M,
GROUP 2 (
'/oracle/app/db1/dbs/log2CRM.dbf',
'/oracle/CRM2/CRM/redo02b.log'
) SIZE 50M,
GROUP 3 (
'/oracle/CRM2/CRM/redo03.log',
'/oracle/CRM2/CRM/redo03b.log'
) SIZE 200M,
GROUP 4 (
'/oracle/CRM2/CRM/redo04.log',
'/oracle/CRM2/CRM/redo04b.log'
) SIZE 200M,
GROUP 5 (
'/oracle/CRM2/CRM/redo05.log',
'/oracle/CRM2/CRM/redo05b.log'
) SIZE 200M,
GROUP 6 (
'/oracle/CRM2/CRM/redo06.log',
'/oracle/CRM2/CRM/redo06b.log'
) SIZE 200M
DATAFILE
'/oracle/CRM2/system1.dbf',
'/oracle/CRM2/CRM/sysaux01.dbf',
'/oracle/CRM2/CRM/users01.dbf',
'/oracle/CRM2/zxa.dbf',
'/oracle/CRM2/CRM/undotbs2.dbf',
'/oracle/CRM2/zxc.dbf',
'/oracle/CRM2/CRM/zxbig1.dbf'
CHARACTER SET ZHS16GBK
;
[oracle@oracle ~]$ exit
exit
3 开始重建控制文件产生missingsnnnn 文件
SQL> @/oracle/control.sql
ORACLE instance started.
Total System Global Area 322961408 bytes
Fixed Size 2020480 bytes
Variable Size 92277632 bytes
Database Buffers 222298112 bytes
Redo Buffers 6365184 bytes
Fixed Size 2020480 bytes
Variable Size 92277632 bytes
Database Buffers 222298112 bytes
Redo Buffers 6365184 bytes
Control file created.
SQL> recover database;
ORA-00283: recovery session canceled due to errors
ORA-01610: recovery using the BACKUP CONTROLFILE option must be done
ORA-00283: recovery session canceled due to errors
ORA-01610: recovery using the BACKUP CONTROLFILE option must be done
SQL> recover database using backup controlfile until cancel;
ORA-00279: change 2148806610 generated at 11/07/2012 12:15:58 needed for thread
1
ORA-00289: suggestion : /oracle/archive/1_3_798683817.dbf
ORA-00280: change 2148806610 for thread 1 is in sequence #3
Specify log: {
cancel
Media recovery cancelled.
SQL> alter database open resetlogs;
Database altered.
SQL> select open_mode from v$database;
OPEN_MODE
----------
READ WRITE
----------
READ WRITE
SQL> select file#,name,status from v$datafile;
FILE# NAME STATUS
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/app/db1/dbs/MISSING00002 RECOVER
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/app/db1/dbs/MISSING00002 RECOVER
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
8 rows selected.
4 重命名missingnnnn数据文件
SQL> alter tablespace zx rename datafile '/oracle/app/db1/dbs/MISSING00002' to '/oracle/CRM2/zxb.dbf';
4 重命名missingnnnn数据文件
SQL> alter tablespace zx rename datafile '/oracle/app/db1/dbs/MISSING00002' to '/oracle/CRM2/zxb.dbf';
Tablespace altered.
SQL> select file#,name,status from v$datafile;
FILE# NAME STATUS
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/CRM2/zxb.dbf RECOVER
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/CRM2/zxb.dbf RECOVER
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
8 rows selected.
5 执行恢复报错如下:(前面几个步骤就是为了构造这个错误)
SQL> recover datafile 2;
ORA-00283: recovery session canceled due to errors
ORA-00600: internal error code, arguments: [krhpfh_03-1202], [fno =], [2],
[fhcrt =], [797369834], [cptim =], [0], []
ORA-01110: data file 2: '/oracle/CRM2/zxb.dbf'
6 bbed参数和文件列表如下:
[oracle@oracle ~]$ cat bbed.para
blocksize=8192
mode=edit
listfile=/oracle/filelist
[oracle@oracle ~]$ cat /oracle/filelist
1 /oracle/CRM2/system1.dbf 503316480
2 /oracle/CRM2/zxb.dbf 10485760
3 /oracle/CRM2/CRM/sysaux01.dbf 304087040
4 /oracle/CRM2/CRM/users01.dbf 5242880
5 /oracle/CRM2/zxa.dbf 104857600
6 /oracle/CRM2/CRM/undotbs2.dbf 209715200
7 /oracle/CRM2/zxc.dbf 10485760
8 /oracle/CRM2/CRM/zxbig1.dbf 2147483648
7 关闭数据库启动bbed对数据文件2进行调整
[oracle@oracle ~]$ bbed parfile=bbed.para
Password:
5 执行恢复报错如下:(前面几个步骤就是为了构造这个错误)
SQL> recover datafile 2;
ORA-00283: recovery session canceled due to errors
ORA-00600: internal error code, arguments: [krhpfh_03-1202], [fno =], [2],
[fhcrt =], [797369834], [cptim =], [0], []
ORA-01110: data file 2: '/oracle/CRM2/zxb.dbf'
6 bbed参数和文件列表如下:
[oracle@oracle ~]$ cat bbed.para
blocksize=8192
mode=edit
listfile=/oracle/filelist
[oracle@oracle ~]$ cat /oracle/filelist
1 /oracle/CRM2/system1.dbf 503316480
2 /oracle/CRM2/zxb.dbf 10485760
3 /oracle/CRM2/CRM/sysaux01.dbf 304087040
4 /oracle/CRM2/CRM/users01.dbf 5242880
5 /oracle/CRM2/zxa.dbf 104857600
6 /oracle/CRM2/CRM/undotbs2.dbf 209715200
7 /oracle/CRM2/zxc.dbf 10485760
8 /oracle/CRM2/CRM/zxbig1.dbf 2147483648
7 关闭数据库启动bbed对数据文件2进行调整
[oracle@oracle ~]$ bbed parfile=bbed.para
Password:
BBED: Release 2.0.0.0.0 - Limited Production on Wed Nov 7 12:25:14 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
************* !!! For Oracle Internal Use only !!! ***************
BBED> info
File# Name Size(blks)
----- ---- ----------
1 /oracle/CRM2/system1.dbf 61440
2 /oracle/CRM2/zxb.dbf 1280
3 /oracle/CRM2/CRM/sysaux01.dbf 37120
4 /oracle/CRM2/CRM/users01.dbf 640
5 /oracle/CRM2/zxa.dbf 12800
6 /oracle/CRM2/CRM/undotbs2.dbf 25600
7 /oracle/CRM2/zxc.dbf 1280
8 /oracle/CRM2/CRM/zxbig1.dbf 262144
File# Name Size(blks)
----- ---- ----------
1 /oracle/CRM2/system1.dbf 61440
2 /oracle/CRM2/zxb.dbf 1280
3 /oracle/CRM2/CRM/sysaux01.dbf 37120
4 /oracle/CRM2/CRM/users01.dbf 640
5 /oracle/CRM2/zxa.dbf 12800
6 /oracle/CRM2/CRM/undotbs2.dbf 25600
7 /oracle/CRM2/zxc.dbf 1280
8 /oracle/CRM2/CRM/zxbig1.dbf 262144
BBED> show
FILE# 1
BLOCK# 1
OFFSET 0
DBA 0x00400001 (4194305 1,1)
FILENAME /oracle/CRM2/system1.dbf
BIFILE bifile.bbd
LISTFILE /oracle/filelist
BLOCKSIZE 8192
MODE Edit
EDIT Unrecoverable
IBASE Dec
OBASE Dec
WIDTH 80
COUNT 512
LOGFILE log.bbd
SPOOL No
FILE# 1
BLOCK# 1
OFFSET 0
DBA 0x00400001 (4194305 1,1)
FILENAME /oracle/CRM2/system1.dbf
BIFILE bifile.bbd
LISTFILE /oracle/filelist
BLOCKSIZE 8192
MODE Edit
EDIT Unrecoverable
IBASE Dec
OBASE Dec
WIDTH 80
COUNT 512
LOGFILE log.bbd
SPOOL No
BBED> dump /v dba 1,1 offset 140 count 20
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 140 to 159 Dba:0x00400001
-------------------------------------------------------
1d030000 e7969b2f 1c030000 00000000 l ....?./........
00000000 l ....
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 140 to 159 Dba:0x00400001
-------------------------------------------------------
1d030000 e7969b2f 1c030000 00000000 l ....?./........
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 2,1 offset 140 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 140 to 159 Dba:0x00800001
-------------------------------------------------------
1d030000 36969b2f 1c030000 00000000 l ....6../........
00000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 140 to 159 Dba:0x00800001
-------------------------------------------------------
1d030000 36969b2f 1c030000 00000000 l ....6../........
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 1,1 offset 148 count 20;
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 148 to 167 Dba:0x00400001
-------------------------------------------------------
1c030000 00000000 00000000 00000000 l ................
00000000 l ....
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 148 to 167 Dba:0x00400001
-------------------------------------------------------
1c030000 00000000 00000000 00000000 l ................
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 2,1 offset 148 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 148 to 167 Dba:0x00800001
-------------------------------------------------------
1c030000 00000000 00000000 00000000 l ................
00000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 148 to 167 Dba:0x00800001
-------------------------------------------------------
1c030000 00000000 00000000 00000000 l ................
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 1,1 offset 492 count 20
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 492 to 511 Dba:0x00400001
-------------------------------------------------------
f2979b2f 01000000 01000000 02000000 l ?./............
10006960 l ..i`
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 492 to 511 Dba:0x00400001
-------------------------------------------------------
f2979b2f 01000000 01000000 02000000 l ?./............
10006960 l ..i`
<16 bytes per line>
BBED> dump /v dba 2,1 offset 492 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 492 to 511 Dba:0x00800001
-------------------------------------------------------
7e969b2f 01000000 03000000 41010000 l ~../........A...
1000403d l ..@=
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 492 to 511 Dba:0x00800001
-------------------------------------------------------
7e969b2f 01000000 03000000 41010000 l ~../........A...
1000403d l ..@=
<16 bytes per line>
BBED> modify /x f2979b2f
BBED-00209: invalid number (f2979b2f)
BBED-00209: invalid number (f2979b2f)
BBED> modify /x f297
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 492 to 511 Dba:0x00800001
------------------------------------------------------------------------
f2979b2f 01000000 03000000 41010000 1000403d
<32 bytes per line>
BBED> set offset +2
OFFSET 494
OFFSET 494
BBED> modify /x 9b2f
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 494 to 513 Dba:0x00800001
------------------------------------------------------------------------
9b2f0100 00000300 00004101 00001000 403d0200
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 494 to 513 Dba:0x00800001
------------------------------------------------------------------------
9b2f0100 00000300 00004101 00001000 403d0200
<32 bytes per line>
BBED> dump /v dba 2,1 offset 492 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 492 to 511 Dba:0x00800001
-------------------------------------------------------
f2979b2f 01000000 03000000 41010000 l ?./........A...
1000403d l ..@=
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 492 to 511 Dba:0x00800001
-------------------------------------------------------
f2979b2f 01000000 03000000 41010000 l ?./........A...
1000403d l ..@=
<16 bytes per line>
BBED> dump /v dba 1,1 offset 484 count 20
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 484 to 503 Dba:0x00400001
-------------------------------------------------------
d42f1480 00000000 f2979b2f 01000000 l ?......?./....
01000000 l ....
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 484 to 503 Dba:0x00400001
-------------------------------------------------------
d42f1480 00000000 f2979b2f 01000000 l ?......?./....
01000000 l ....
<16 bytes per line>
BBED> dump /v dba 2,1 offset 484 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 484 to 503 Dba:0x00800001
-------------------------------------------------------
d22f1480 00000000 f2979b2f 01000000 l ?......?./....
03000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 484 to 503 Dba:0x00800001
-------------------------------------------------------
d22f1480 00000000 f2979b2f 01000000 l ?......?./....
03000000 l ....
<16 bytes per line>
BBED> modify /x d42f1480
BBED-00209: invalid number (d42f1480)
BBED-00209: invalid number (d42f1480)
BBED> modify /x d42f
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 484 to 503 Dba:0x00800001
------------------------------------------------------------------------
d42f1480 00000000 f2979b2f 01000000 03000000
<32 bytes per line>
BBED> set offset +2
OFFSET 486
OFFSET 486
BBED> modify /x 1480
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 486 to 505 Dba:0x00800001
------------------------------------------------------------------------
14800000 0000f297 9b2f0100 00000300 00004101
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 486 to 505 Dba:0x00800001
------------------------------------------------------------------------
14800000 0000f297 9b2f0100 00000300 00004101
<32 bytes per line>
BBED> dump /v offset 484 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 484 to 503 Dba:0x00800001
-------------------------------------------------------
d42f1480 00000000 f2979b2f 01000000 l ?......?./....
03000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 484 to 503 Dba:0x00800001
-------------------------------------------------------
d42f1480 00000000 f2979b2f 01000000 l ?......?./....
03000000 l ....
<16 bytes per line>
BBED> dump /v dba 1,1 offset 112 count 20
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 112 to 131 Dba:0x00400001
-------------------------------------------------------
f8969b2f d32f1480 00000000 00000000 l ?./?..........
00000000 l ....
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 112 to 131 Dba:0x00400001
-------------------------------------------------------
f8969b2f d32f1480 00000000 00000000 l ?./?..........
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 2,1 offset 112 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 112 to 131 Dba:0x00800001
-------------------------------------------------------
a9f29a2f b3e61380 00000000 00000000 l ?./虫..........
00000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 112 to 131 Dba:0x00800001
-------------------------------------------------------
a9f29a2f b3e61380 00000000 00000000 l ?./虫..........
00000000 l ....
<16 bytes per line>
BBED> modify /x f8969b2f
BBED-00209: invalid number (f8969b2f)
BBED-00209: invalid number (f8969b2f)
BBED> modify /x f896
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 112 to 131 Dba:0x00800001
------------------------------------------------------------------------
f8969a2f b3e61380 00000000 00000000 00000000
<32 bytes per line>
BBED> set offset +2
OFFSET 114
OFFSET 114
BBED> modify /x 9b2f
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 114 to 133 Dba:0x00800001
------------------------------------------------------------------------
9b2fb3e6 13800000 00000000 00000000 00000000
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 114 to 133 Dba:0x00800001
------------------------------------------------------------------------
9b2fb3e6 13800000 00000000 00000000 00000000
<32 bytes per line>
BBED> dump /v offset 112
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 112 to 131 Dba:0x00800001
-------------------------------------------------------
f8969b2f b3e61380 00000000 00000000 l ?./虫..........
00000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 112 to 131 Dba:0x00800001
-------------------------------------------------------
f8969b2f b3e61380 00000000 00000000 l ?./虫..........
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 1,1 offset 116 count 20
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 116 to 135 Dba:0x00400001
-------------------------------------------------------
d32f1480 00000000 00000000 00000000 l ?..............
00000000 l ....
File: /oracle/CRM2/system1.dbf (1)
Block: 1 Offsets: 116 to 135 Dba:0x00400001
-------------------------------------------------------
d32f1480 00000000 00000000 00000000 l ?..............
00000000 l ....
<16 bytes per line>
BBED> dump /v dba 2,1 offset 116 count 20
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 116 to 135 Dba:0x00800001
-------------------------------------------------------
b3e61380 00000000 00000000 00000000 l 虫..............
00000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 116 to 135 Dba:0x00800001
-------------------------------------------------------
b3e61380 00000000 00000000 00000000 l 虫..............
00000000 l ....
<16 bytes per line>
BBED> modify /x d32f1480
BBED-00209: invalid number (d32f1480)
BBED-00209: invalid number (d32f1480)
BBED> modify /x d32f
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 116 to 135 Dba:0x00800001
------------------------------------------------------------------------
d32f1380 00000000 00000000 00000000 00000000
<32 bytes per line>
BBED> set offset +2
OFFSET 118
OFFSET 118
BBED> modify /x 1480
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 118 to 137 Dba:0x00800001
------------------------------------------------------------------------
14800000 00000000 00000000 00000000 00000000
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 118 to 137 Dba:0x00800001
------------------------------------------------------------------------
14800000 00000000 00000000 00000000 00000000
<32 bytes per line>
BBED> dump /v offset 116
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 116 to 135 Dba:0x00800001
-------------------------------------------------------
d32f1480 00000000 00000000 00000000 l ?..............
00000000 l ....
File: /oracle/CRM2/zxb.dbf (2)
Block: 1 Offsets: 116 to 135 Dba:0x00800001
-------------------------------------------------------
d32f1480 00000000 00000000 00000000 l ?..............
00000000 l ....
<16 bytes per line>
BBED> sum apply
Check value for File 2, Block 1:
current = 0x6d37, required = 0x6d37
Check value for File 2, Block 1:
current = 0x6d37, required = 0x6d37
BBED> exit
[oracle@oracle ~]$ exit
exit
exit
SQL> select file#,name,status from v$datafile;
FILE# NAME STATUS
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/CRM2/zxb.dbf RECOVER
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/CRM2/zxb.dbf RECOVER
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
8 rows selected.
SQL> recover datafile 2
Media recovery complete.
SQL> select file#,name,status from v$datafile;
Media recovery complete.
SQL> select file#,name,status from v$datafile;
FILE# NAME STATUS
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/CRM2/zxb.dbf OFFLINE
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
---------- ---------------------------------------- -------
1 /oracle/CRM2/system1.dbf SYSTEM
2 /oracle/CRM2/zxb.dbf OFFLINE
3 /oracle/CRM2/CRM/sysaux01.dbf ONLINE
4 /oracle/CRM2/CRM/users01.dbf ONLINE
5 /oracle/CRM2/zxa.dbf ONLINE
6 /oracle/CRM2/CRM/undotbs2.dbf ONLINE
7 /oracle/CRM2/zxc.dbf ONLINE
8 /oracle/CRM2/CRM/zxbig1.dbf ONLINE
8 rows selected.
SQL> alter database datafile 2 online;
Database altered.