[ORACLE]BBED之基础篇

 BBED,Block Browser and EDitor ,是一个用来能够直接修改oracle数据块的工具，在极端恢复场景时能够使用到。该工具不受Oracle的支持，默认是没有可执行文件的。所以，要使用这个这个工具，还的自己先编译下。

 

1.BBED的编译

 Oracle 9i/10G提供了BBED的编译库文件，但11G未提供，一个解决方法就是从10G中拷一份。

 [oracle@WZY ~]$ cd  $ORACLE_HOME/rdbms/lib

 [oracle@WZY lib]$ make -f ins_rdbms.mk $ORACLE_HOME/rdbms/lib/bbed

Linking BBED utility (bbed)

rm -f /u01/app/oracle/product/10.2.0/db_1/rdbms/lib/bbed

gcc -o /u01/app/oracle/product/10.2.0/db_1/rdbms/lib/bbed -L/u01/app/oracle/product/10.2.0/db_1/rdbms/lib/ -L/u01/app/oracle/product/10.2.0/db_1/lib/ -L/u01/app/oracle/product/10.2.0/db_1/lib/stubs/ -L/usr/lib -lirc  /u01/app/oracle/product/10.2.0/db_1/lib/s0main.o /u01/app/oracle/product/10.2.0/db_1/rdbm

…………

…………

 

2 BBED的登录

BBED的初始密码是blockedit

[oracle@edbjr2p1 lib]$ ./bbed

Password: 

BBED: Release 2.0.0.0.0 - Limited Production on Wed Sep 17 16:59:40 2014

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

************* !!! For Oracle Internal Use only !!! ***************

BBED> 

 

[oracle@edbjr2p1 lib]$ ./bbed help=y

 

PASSWORD - Required parameter

FILENAME - Database file name

BLOCKSIZE - Database block size

LISTFILE - List file name

MODE - [browse/edit]

SPOOL - Spool to logfile [no/yes]

CMDFILE - BBED command file name

LOGFILE - BBED log file name

PARFILE - Parameter file name

BIFILE - BBED before-image file name

REVERT - Rollback changes from BIFILE [no/yes]

SILENT - Hide banner [no/yes]

HELP - Show all valid parameters [no/yes]

[oracle@edbjr2p1 lib]$ 

 

3.对BBED的简单操作

 1)

SYS@ORCL>select FILE#||''||NAME||' '||BYTES from v$datafile;

FILE#||''||NAME||''||BYTES

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

1/u01/app/oracle/oradata/PROD/disk1/system01.dbf 340787200

2/u01/app/oracle/oradata/PROD/disk1/undotbs01.dbf 209715200

3/u01/app/oracle/oradata/PROD/disk1/sysaux01.dbf 340787200

4/u01/app/oracle/oradata/PROD/disk3/example.dbf 673185792

5/u01/app/oracle/oradata/PROD/disk4/USERS.dbf 50331648

 2)

[oracle@edbjr2p1 wzy]$ cat filelist.txt 

1/u01/app/oracle/oradata/PROD/disk1/system01.dbf 340787200

2/u01/app/oracle/oradata/PROD/disk1/undotbs01.dbf 209715200

3/u01/app/oracle/oradata/PROD/disk1/sysaux01.dbf 340787200

4/u01/app/oracle/oradata/PROD/disk3/example.dbf 673185792

5/u01/app/oracle/oradata/PROD/disk4/USERS.dbf 50331648

 3）

[oracle@edbjr2p1 lib]$ ./bbed BLOCKSIZE=8192 LISTFILE=/home/oracle/wzy/filelist.txt MODE=edit

Password: 

BBED: Release 2.0.0.0.0 - Limited Production on Thu Sep 18 09:37:32 2014

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

************* !!! For Oracle Internal Use only !!! ***************

BBED> 

 

也可以将后面的一堆参数放在一个参数文件中

[oracle@edbjr2p1 wzy]$ cat bbed.par 

BLOCKSIZE=8192

LISTFILE=/home/oracle/wzy/filelist.txt

MODE=edit

 

[oracle@edbjr2p1 lib]$ ./bbed parfile=/home/oracle/wzy/bbed.par

Password: 

BBED: Release 2.0.0.0.0 - Limited Production on Thu Sep 18 09:39:46 2014

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

************* !!! For Oracle Internal Use only !!! ***************

help all 命令将BBED中的所有用到了语法给出来。

BBED> help all;
SET DBA [ dba | file#, block# ]
SET FILENAME 'filename'
SET FILE file#
SET BLOCK [+/-]block#
SET OFFSET [ [+/-]byte offset | symbol | *symbol ]
SET BLOCKSIZE bytes
SET LIST[FILE] 'filename'
SET WIDTH character_count
SET COUNT bytes_to_display
SET IBASE [ HEX | OCT | DEC ]
SET OBASE [ HEX | OCT | DEC ]
SET MODE  [ BROWSE | EDIT ]
SET SPOOL [ Y | N ]
SHOW [ <SET parameter> | ALL ]
INFO
MAP[/v] [ DBA | FILENAME | FILE | BLOCK ]
DUMP[/v] [ DBA | FILENAME | FILE | BLOCK | OFFSET | COUNT ]
PRINT[/x|d|u|o|c] [ DBA | FILE | FILENAME | BLOCK | OFFSET | symbol | *symbol ]
EXAMINE[/Nuf] [ DBA | FILE | FILENAME | BLOCK | OFFSET | symbol | *symbol ]
</Nuf>:
N - a number which specifies a repeat count.
u - a letter which specifies a unit size:
  b - b1, ub1 (byte)
  h - b2, ub2 (half-word)
  w - b4, ub4(word)
  r - Oracle table/index row
f - a letter which specifies a display format:
  x - hexadecimal
  d - decimal
  u - unsigned decimal
  o - octal
  c - character (native)
  n - Oracle number
  t - Oracle date
  i - Oracle rowid
FIND[/x|d|u|o|c] numeric/character string [ TOP | CURR ]
COPY [ DBA | FILE | FILENAME | BLOCK ] TO [ DBA | FILE | FILENAME | BLOCK ]
MODIFY[/x|d|u|o|c] numeric/character string
      [ DBA | FILE | FILENAME | BLOCK | OFFSET | symbol | *symbol ]
ASSIGN[/x|d|u|o] <target spec>=<source spec>
<target spec> : [ DBA | FILE | FILENAME | BLOCK | OFFSET | symbol | *symbol ]
<source spec> : [ value | <target spec options> ]
SUM [ DBA | FILE | FILENAME | BLOCK ] [ APPLY ]
PUSH [ DBA | FILE | FILENAME | BLOCK | OFFSET ]
POP [ALL]
REVERT [ DBA | FILE | FILENAME | BLOCK ]
UNDO
HELP [ <bbed command> | ALL ]
VERIFY [ DBA | FILE | FILENAME | BLOCK ]
CORRUPT [ DBA | FILE | FILENAME | BLOCK ]