bbed安装

1.bbed 简介

bbed （Block Browerand EDitor Tool）：是oracle内存使用的一个工具，能直接查看和修改文件数据。但不受oracle支持，在一些复杂及极端的环境下使用。

对深入了解数据块结构能起到很好的帮助作用。

2.bbed安装过程

第一步：

oracle 11g中缺bbed包,oracle11g bbed install and example

上传（sbbdpt.o ssbbded.o bbedus.msb，该三个文件拷贝oracle的linux64版本的）文件

$ORACLE_HOME/rdbms/lib/ssbbded.o

　  $ORACLE_HOME/rdbms/lib/sbbdpt.o

$ORACLE_HOME/rdbms/mesg/bbedus.msb

第二步:

执行以下命令进行编译：

cd $ORACLE_HOME/rdbms/lib

make -f $ORACLE_HOME/rdbms/lib/ins_rdbms.mk BBED=$ORACLE_HOME/bin/bbed $ORACLE_HOME/bin/bbed

第三步：

BBED是Oracle 内部使用的命令，所以Oracle 不提供技术支持。 为了安全，BBED设置了口令保护，默认密码为blockedit。进入bbed

[[email protected] ~]$ bbed
Password: 

BBED: Release 2.0.0.0.0 - Limited Production on Fri Nov 21 20:40:12 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

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

BBED>

第四步： 配置bbed默认环境

创建parameter file文件

[[email protected] tmp]$ vi bbedpar.txt
然后插入
blocksize=8192
listfile=/tmp/filelist.txt
mode=edit

　　创建filelist.txt

执行select file#||chr(9)||name||chr(9)||bytes from v$datafile;

SQL> select file#||chr(9)||name||chr(9)||bytes from v$datafile;

FILE#||CHR(9)||NAME||CHR(9)||BYTES
--------------------------------------------------------------------------------
1       /app/oracle/oradata/orcl/system01.dbf   754974720
2       /app/oracle/oradata/orcl/sysaux01.dbf   671088640
3       /app/oracle/oradata/orcl/undotbs01.dbf  99614720
4       /app/oracle/oradata/orcl/users01.dbf    716963840
5       /app/oracle/product/11g/db_1/dbs/D:OracleAdministratororadatayftestRES.DBF       524
288000

6       /tmp/user01.dbf 41943040

6 rows selected.

　　把查询的内容插入到filelist.txt中

第五步：

可以测试：

[[email protected] tmp]$ bbed parfile = /tmp/bbedpar.txt
Password: 

BBED: Release 2.0.0.0.0 - Limited Production on Fri Nov 21 20:46:30 2014

Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.

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

BBED>

　　成功

3.bbed命名

使用help all 查看bbed的基本命令

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 ]

　　截取一些常用命令的说明

SET DBA [ dba | file#, block# ] -----设置(data block address file#+block#)
SET FILENAME ‘filename‘         -----设置哪个文件的名称
SET FILE file#                  -----设置文件号
SET BLOCK [+/-]block#           -----设置块号
SET OFFSET [ [+/-]byte offset | symbol | *symbol ]    -----设置偏移量，字节为单位
SET BLOCKSIZE bytes                                   -----设置块的大小（8192）
SET LIST[FILE] ‘filename‘                             -----设置文件列表
SET WIDTH character_count                             -----设置显示宽度
SET COUNT bytes_to_display                            -----设置显示的字节bytes数
SET IBASE [ HEX | OCT | DEC ]                         ---设置进制的模式
SET OBASE [ HEX | OCT | DEC ]                         -----
SET MODE  [ BROWSE | EDIT ]                           ---设置操作模式，查看还是编辑
SET SPOOL [ Y | N ]                                   -----是否保存操作日志

安装等都很简单，命令也很少，但使用时需要对oracle 数据块等很了解才能发挥出它的作用。

希望自己能好好加油！！