b2 _ktbitfsc @86 0
ub2 _ktbitwrp @86 0x0000
ub4 ktbitbas @88 0x00000000
BBED> m /x 0080 offset 84
File: /u01/app/oracle/oradata/ORCL/users01.dbf (4)
Block: 444 Offsets: 84 to 595 Dba:0x010001bc
------------------------------------------------------------------------
00800000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
<32 bytes per line>
BBED> sum apply
Check value for File 4, Block 444:
current = 0x17c1, required = 0x17c1
Session3重启数据库查询数据：
SYS@ORCL>shutdown abort
ORACLE instance shut down.
SYS@ORCL>startup
ORACLE instance started.
Total System Global Area 285212672 bytes
Fixed Size 1218992 bytes
Variable Size 75499088 bytes
Database Buffers 205520896 bytes
Redo Buffers 2973696 bytes
Database mounted.
Database opened.
SYS@ORCL>select last_name from jp.bbed_test;
LAST_NAME
-------------------------
BADLY9
BADLY9
BADLY9
BADLY9
BADLY9
BADLY9
BADLY9
BADLY9
BADLY9
BADLY9
10 rows selected.
实验过程参考飞总的文章：http://www.orasos.com/4194.html