官方简介：
The name bbed is an acronym for Block Browser and EDitor and it is shipped with thedatabase. It is intended for Oracle internal use only and the company neverpublishes any details about it. It is a very powerful tool but also extremelydangerous since it can change and/or corrupt data blocks of any Oracledatabase.
If you use this tool, you do so at your own risk. Any modifications made with thistool render the database unsupported by Oracle.
BBED是Oracle的内部工具，不受Oracle技术支持，该工具像一把锋利的手术刀，可以切入数据块内部进行修修改改，因此非常危险，操作需特别谨慎！
实验目的：
使用BBED修改数据文件内的数据信息。
操作过程：
1.获取数据文件的文件号、文件绝对路径名和大小：
SQL> select file#||' '||name||' '||bytes from v$datafile ;
FILE#||''||NAME||''||BYTES
--------------------------------------------------------------------------------
1 /oracle/app/oradata/ORCL/datafile/o1_mf_system_8xm4839m_.dbf 859832320
2 /oracle/app/oradata/ORCL/datafile/o1_mf_sysaux_8xm483f7_.dbf 555745280
3 /oracle/app/oradata/ORCL/datafile/o1_mf_undotbs1_8xm483gd_.dbf 89128960
4 /oracle/app/oradata/ORCL/datafile/o1_mf_users_8xm483jk_.dbf 70778880
5 /oracle/app/oradata/ORCL/datafile/o1_mf_example_8xm4gzck_.dbf 108134400
6 /oracle/app/oradata/catalog_rman/rmantbs01.dbf 52428800
7 /oracle/app/oradata/ORCL/datafile/gaoqiang.dbf 5242880
8 /oracle/app/oradata/ORCL/datafile/gao.dbf 5242880
9 /oracle/app/oradata/ORCL/datafile/lee.dbf 10485760
10 /oracle/app/oradata/ORCL/datafile/jon.dbf 10485760
10 rows selected.
2.创建文件清单：
[oracle@dbserver oracle]$ vi filelist.txt
加入如下内容：
1 /oracle/app/oradata/ORCL/datafile/o1_mf_system_8xm4839m_.dbf 859832320
2 /oracle/app/oradata/ORCL/datafile/o1_mf_sysaux_8xm483f7_.dbf 555745280
3 /oracle/app/oradata/ORCL/datafile/o1_mf_undotbs1_8xm483gd_.dbf 89128960
4 /oracle/app/oradata/ORCL/datafile/o1_mf_users_8xm483jk_.dbf 70778880
5 /oracle/app/oradata/ORCL/datafile/o1_mf_example_8xm4gzck_.dbf 108134400
6 /oracle/app/oradata/catalog_rman/rmantbs01.dbf 52428800
7 /oracle/app/oradata/ORCL/datafile/gaoqiang.dbf 5242880
8 /oracle/app/oradata/ORCL/datafile/gao.dbf 5242880
9 /oracle/app/oradata/ORCL/datafile/lee.dbf 10485760
10 /oracle/app/oradata/ORCL/datafile/jon.dbf 10485760
[oracle@dbserver oracle]$ cat filelist.txt
1 /oracle/app/oradata/ORCL/datafile/o1_mf_system_8xm4839m_.dbf 859832320
2 /oracle/app/oradata/ORCL/datafile/o1_mf_sysaux_8xm483f7_.dbf 555745280
3 /oracle/app/oradata/ORCL/datafile/o1_mf_undotbs1_8xm483gd_.dbf 89128960
4 /oracle/app/oradata/ORCL/datafile/o1_mf_users_8xm483jk_.dbf 70778880
5 /oracle/app/oradata/ORCL/datafile/o1_mf_example_8xm4gzck_.dbf 108134400
6 /oracle/app/oradata/catalog_rman/rmantbs01.dbf 52428800
7 /oracle/app/oradata/ORCL/datafile/gaoqiang.dbf 5242880
8 /oracle/app/oradata/ORCL/datafile/gao.dbf 5242880
9 /oracle/app/oradata/ORCL/datafile/lee.dbf 10485760
10 /oracle/app/oradata/ORCL/datafile/jon.dbf 10485760
3.创建bbed参数文件：
[oracle@dbserver oracle]$ cat bbed.par
blocksize=8192
listfile=/oracle/filelist.txt
mode=edit
4.登陆BBED：
[oracle@dbserver oracle]$ bbed parfile=/oracle/bbed.par
Password:
BBED: Release 2.0.0.0.0 - Limited Production on Tue Jan 27 05:56:31 2015
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
************* !!! For Oracle Internal Use only !!! *************** ----谨慎使用，No Zuo No Die~~~