BBED这是Oracle一款内部工具，可以直接修改Oracle数据文件块的内容，在一些极端恢复场景下比较有用。使用起来也很方便，当然该工具不受Oracle支持，所以默认是没有生成可执行文件的，在使用前需要重新连接。
在9i/10g中连接生成bbed:
cd $ORACLE_HOME/rdbms/lib
make -f ins_rdbms.mk $ORACLE_HOME/rdbms/lib/bbed
具体操作步骤如下：
oracle@localhost.localdomain:/opt/oracle/10.2.0/orcl/rdbms/lib>make -f ins_rdbms.mk $ORACLE_HOME/rdbms/lib/bbed
Linking BBED utility (bbed)
rm -f /opt/oracle/10.2.0/orcl/rdbms/lib/bbed
gcc -o /opt/oracle/10.2.0/orcl/rdbms/lib/bbed -L/opt/oracle/10.2.0/orcl/rdbms/lib/ -L/opt/oracle/10.2.0/orcl/lib/ -L/opt/oracle/10.2.0/orcl/lib/stubs/ /opt/oracle/10.2.0/orcl/lib/s0main.o /opt/oracle/10.2.0/orcl/rdbms/lib/ssbbded.o /opt/oracle/10.2.0/orcl/rdbms/lib/sbbdpt.o `cat /opt/oracle/10.2.0/orcl/lib/ldflags` -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 /opt/oracle/10.2.0/orcl/rdbms/lib/defopt.o -ldbtools10 -lclntsh `cat /opt/oracle/10.2.0/orcl/lib/ldflags` -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lnro10 `cat /opt/oracle/10.2.0/orcl/lib/ldflags` -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lclient10 -lnnetd10 -lvsn10 -lcommon10 -lgeneric10 -lmm -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 `cat /opt/oracle/10.2.0/orcl/lib/ldflags` -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lnro10 `cat /opt/oracle/10.2.0/orcl/lib/ldflags` -lnsslb10 -lncrypt10 -lnsgr10 -lnzjs10 -ln10 -lnnz10 -lnl10 -lclient10 -lnnetd10 -lvsn10 -lcommon10 -lgeneric10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 -lclient10 -lnnetd10 -lvsn10 -lcommon10 -lgeneric10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lcore10 -lsnls10 -lnls10 -lxml10 -lcore10 -lunls10 -lsnls10 -lnls10 -lcore10 -lnls10 `cat /opt/oracle/10.2.0/orcl/lib/sysliblist` -Wl,-rpath,/opt/oracle/10.2.0/orcl/lib -lm `cat /opt/oracle/10.2.0/orcl/lib/sysliblist` -ldl -lm -L/opt/oracle/10.2.0/orcl/lib
第一次执行bbed的时候遇到如下情况
oracle@localhost.localdomain:/opt/oracle/10.2.0/orcl/rdbms/lib>bbed
-bash: bbed: command not found
oracle@localhost.localdomain:/opt/oracle/10.2.0/orcl/rdbms/lib>ls -al bbed
-rwxr-xr-x 1 oracle oinstall 541134 08-06 16:58 bbed
需要以./bbed的方式才能够执行bbed
oracle@localhost.localdomain:/opt/oracle/10.2.0/orcl/rdbms/lib>./bbed
Password: blockedit --密码
BBED: Release 2.0.0.0.0 - Limited Production on Sat Aug 6 17:24:43 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
************* !!! For Oracle Internal Use only !!! ***************
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 [ | 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 ]
:
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] =
: [ DBA | FILE | FILENAME | BLOCK | OFFSET | symbol | *symbol ]
: [ value | ]
SUM [ DBA | FILE | FILENAME | BLOCK ] [ APPLY ]
PUSH [ DBA | FILE | FILENAME | BLOCK | OFFSET ]
POP [ALL]
REVERT [ DBA | FILE | FILENAME | BLOCK ]
UNDO
HELP [ | ALL ]
VERIFY [ DBA | FILE | FILENAME | BLOCK ]
CORRUPT [ DBA | FILE | FILENAME | BLOCK ]
显示当前的BBED的配置状态
BBED> show
FILE# 0
BLOCK# 1
OFFSET 0
DBA 0x00000000 (0 0,1)
FILENAME
BIFILE bifile.bbd
LISTFILE
BLOCKSIZE 8192
MODE Browse
EDIT Unrecoverable
IBASE Dec
OBASE Dec
WIDTH 80
COUNT 512
LOGFILE log.bbd
SPOOL No
