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Oracle中如何手工提交ClusterTable的事務

編輯：Oracle教程

環境中遇到了ora-00600 4000錯誤,涉及的對象即為cluster table,下面我這裡簡單模擬了一下。供參考!

++++創建測試表

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SQL> conn roger/roger
Connected.
SQL> create
cluster t_cluster(id number(2)) ;

Cluster created.

SQL> create
table t_0610
2  (id number(2)
primary key,
3 
name varchar2(13))
4  cluster t_cluster(id);

Table 
created.
SQL>  create
index t_cluster_idx 
on cluster t_cluster;

Index 
created.

SQL>
SQL> insert
into t_0610 values(1,'baidu');

1 row created.

SQL> insert
into t_0610 values(2,'google');

1 row created.

SQL> insert
into t_0610 values(8,'roger');

1 row created.

SQL> commit;

Commit 
complete.

SQL> select
* from 
t_0610;

ID NAME
---------- -------------
1 baidu
2 google
8 roger
SQL> select
dbms_rowid.rowid_relative_fno(rowid) file#,dbms_rowid.rowid_block_number(rowid) blk#
2 
from t_0610;

FILE#       BLK#
---------- ----------
6        172
6        173
6        174

SQL> oradebug setmypid
ORA-01031: insufficient
privileges
SQL> conn /as
sysdba
Connected.
SQL> oradebug setmypid
Statement processed.
SQL> alter
system flush buffer_cache;

System altered.
SQL> alter
system dump datafile 6 block 172;

System altered.

SQL> oradebug close_trace
Statement processed.
SQL> oradebug tracefile_name
/oracle/diag/rdbms/roger/roger/trace/roger_ora_16777.trc







++++blockdump內容


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Dump of buffer cache at level 4 for tsn=7 rdba=25165996
BH (0x71bf2f28) file#: 6 rdba: 0x018000ac (6/172) class: 1 ba: 0x71ad8000
set: 3 pool: 3 bsz: 8192 bsi: 0 sflg: 2 pwc: 0,15
dbwrid: 0 obj: 77519 objn: 77520 tsn: 7 afn: 6 hint: f
hash: [0x8abfa738,0x8abfa738] lru: [0x74ff33a0,0x7abf47d0]
lru-flags: on_auxiliary_list
ckptq: [NULL] fileq: [NULL] objq: [NULL] objaq: [NULL]
st: FREE md: NULL fpin: 'ktspbwh2: ktspfmdb' tch: 0 lfb: 33
flags:
Block dump from disk:
buffer tsn: 7 rdba: 0x018000ac (6/172)
scn: 0x0000.00b941a6 seq: 0x01 flg: 0x06 tail: 0x41a60601
frmt: 0x02 chkval: 0xcb52 type: 0x06=trans data
Hex dump of block: st=0, typ_found=1
Dump of memory from 0x00007FADB771EA00 to 0x00007FADB7720A00
7FADB771EA00 0000A206 018000AC 00B941A6 06010000  [.........A......]
7FADB771EA10 0000CB52 00000001 00012ECF 00B94199  [R............A..]
7FADB771EA20 00000000 00320002 018000A8 00080006  [......2.........]
7FADB771EA30 00000515 00C00562 002E014E 00008000  [....b...N.......]
7FADB771EA40 00B94198 001D0007 000004C9 00C03C08  [.A...........<..]
7FADB771EA50 0032019D 00002001 00B941A6 00000000  [..2.. ...A......]
7FADB771EA60 00000000 00020201 001AFFFF 1F5E1F78  [............x.^.]
7FADB771EA70 00001F5E 00010001 1F820001 00001F78  [^...........x...]
7FADB771EA80 00000000 00000000 00000000 00000000  [................]
Repeat 500 times
7FADB77209D0 00000000 00000000 00000000 0001026C  [............l...]
7FADB77209E0 69616205 00AC7564 01000101 00800100  [.baidu..........]
7FADB77209F0 010000AC 00AC0080 02C10200 41A60601  [...............A]
Block header dump:  0x018000ac
Object id on Block? Y
seg/obj: 0x12ecf  csc: 0x00.b94199  itc: 2  flg: E  typ: 1 - DATA
brn: 0  bdba: 0x18000a8 ver: 0x01 opc: 0
inc: 0  exflg: 0

Itl           Xid                  Uba         Flag  Lck        Scn/Fsc
0x01   0x0006.008.00000515  0x00c00562.014e.2e  C---    0  scn 0x0000.00b94198
0x02   0x0007.01d.000004c9  0x00c03c08.019d.32  --U-    1  fsc 0x0000.00b941a6
bdba: 0x018000ac
data_block_dump,data header at 0x7fadb771ea64
===============
tsiz: 0x1f98
hsiz: 0x1a
pbl: 0x7fadb771ea64
76543210
flag=-------K
ntab=2                ---- > 大於2，說明這是一個cluster table
nrow=2
frre=-1
fsbo=0x1a
fseo=0x1f78
avsp=0x1f5e
tosp=0x1f5e
0xe:pti[0]      nrow=1  offs=0
0x12:pti[1]     nrow=1  offs=1
0x16:pri[0]     offs=0x1f82
0x18:pri[1]     offs=0x1f78
block_row_dump:
tab 0, row 0, @0x1f82
tl: 22 fb: K-H-FL-- lb: 0x0  cc: 1
curc: 1 comc: 1 pk: 0x018000ac.0 nk: 0x018000ac.0
col  0: [ 2]  c1 02
tab 1, row 0, @0x1f78
tl: 10 fb: -CH-FL-- lb: 0x2  cc: 1 cki: 0
col  0: [ 5]  62 61 69 64 75
end_of_block_dump
End dump data blocks tsn: 7 file#: 6 minblk 172 maxblk 172







大家可以看到，這跟普通的data block的dump內容是有所差別的，因為這裡涉及到cluster table。
下面來模擬下手工提交cluster table的事務。
+++++模擬事務不提交


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SQL> alter
system checkpoint;

System altered.

SQL> alter
system flush buffer_cache;

System altered.

SQL> show user
USER 
is "SYS"
SQL> conn roger/roger
Connected.
SQL> delete
from t_0610 where
id=8;            ++++++不提交

1 row deleted.

SQL> alter
system flush buffer_cache;

System altered.

SQL> select
xidusn,xidslot,xidsqn,ubablk,ubafil,ubarec from
v$transaction;

XIDUSN    XIDSLOT     XIDSQN     UBABLK     UBAFIL     UBAREC
---------- ---------- ---------- ---------- ---------- ----------
3         17       1212       1066          3         20

SQL>







這裡我們可以看到對於這個未提交的事務XID為：3.17.1212  前面我們已經知道

測試表中的數據分布在3個block中，這裡我模擬的情況是刪除第3條數據，且不提交，通過bbed來實現手工

提交這個未提交事務，注意：第3條數據是在第3個block中，即174 block。
+++++首先修改表的itl等信息


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BBED> set file 6 block 174
FILE#           6
BLOCK#          174

BBED> map
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174                                   Dba:0x018000ae
------------------------------------------------------------
KTB Data Block (Table/Cluster)

struct kcbh, 20 bytes                      @0

struct ktbbh, 72 bytes                     @20

struct kdbh, 14 bytes                      @100

struct kdbt[2], 8 bytes                    @114

sb2 kdbr[2]                                @122

ub1 freespace[8030]                        @126

ub1 rowdata[32]                            @8156

ub4 tailchk                                @8188

BBED> p kdbr
sb2 kdbr[0]                                 @122      8066
sb2 kdbr[1]                                 @124      8056
BBED> p ktbbh
struct ktbbh, 72 bytes                      @20
ub1 ktbbhtyp                             @20       0x01 (KDDBTDATA)
union ktbbhsid, 4 bytes                  @24
ub4 ktbbhsg1                          @24       0x00012ecf
ub4 ktbbhod1                          @24       0x00012ecf
struct ktbbhcsc, 8 bytes                 @28
ub4 kscnbas                           @28       0x00b94309
ub2 kscnwrp                           @32       0x0000
sb2 ktbbhict                             @36       2
ub1 ktbbhflg                             @38       0x32 (NONE)
ub1 ktbbhfsl                             @39       0x00
ub4 ktbbhfnx                             @40       0x018000a8
struct ktbbhitl[0], 24 bytes             @44
struct ktbitxid, 8 bytes              @44
ub2 kxidusn                        @44       0x0009
ub2 kxidslt                        @46       0x0002
ub4 kxidsqn                        @48       0x0000044c
struct ktbituba, 8 bytes              @52
ub4 kubadba                        @52       0x00c000f9
ub2 kubaseq                        @56       0x014a
ub1 kubarec                        @58       0x1d
ub2 ktbitflg                          @60       0x8000 (KTBFCOM)
union _ktbitun, 2 bytes               @62
sb2 _ktbitfsc                      @62       0
ub2 _ktbitwrp                      @62       0x0000
ub4 ktbitbas                          @64       0x00b941a4
struct ktbbhitl[1], 24 bytes             @68
struct ktbitxid, 8 bytes              @68
ub2 kxidusn                        @68       0x0003
ub2 kxidslt                        @70       0x0011
ub4 kxidsqn                        @72       0x000004bc
struct ktbituba, 8 bytes              @76
ub4 kubadba                        @76       0x00c0042a
ub2 kubaseq                        @80       0x0185
ub1 kubarec                        @82       0x13
ub2 ktbitflg                          @84       0x0001 (NONE)
union _ktbitun, 2 bytes               @86
sb2 _ktbitfsc                      @86       6
ub2 _ktbitwrp                      @86       0x0006
ub4 ktbitbas                          @88       0x00000000
BBED> modify /x 0180
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174              Offsets:   84 to   87           Dba:0x018000ae
------------------------------------------------------------------------
01800600

<32 bytes per line>
BBED> modify /x 00 offset 86
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174              Offsets:   86 to   87           Dba:0x018000ae
------------------------------------------------------------------------
0000

<32 bytes per line>

BBED> sum apply
Check value 
for File 6, Block 174:
current = 0x055c, required = 0x055c

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 174

Block Checking: DBA = 25165998, Block Type = KTB-managed data block
data header at 0x7f88d49c1264
kdbchk: row locked by non-existent transaction
table=1   slot=0
lockid=2   ktbbhitc=2
Block 174 failed with check code 6101
BBED> p *kdbr[1]
rowdata[0]
----------
ub1 rowdata[0]                              @8156     0x7c

BBED> x /rnnnnccccccnnnnnnnnnnn
rowdata[0]                                  @8156
----------
flag@8156: 0x7c (KDRHFL, KDRHFF, KDRHFD, KDRHFH, KDRHFC)
lock@8157: 0x02
cols@8158:    0
BBED> modify /x 6c offset 8156
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174              Offsets: 8156 to 8159           Dba:0x018000ae
------------------------------------------------------------------------
6c020100

<32 bytes per line>

BBED> sum apply
Check value 
for File 6, Block 174:
current = 0x054c, required = 0x054c

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 174

Block Checking: DBA = 25165998, Block Type = KTB-managed data block
data header at 0x1112864
kdbchk: row locked by non-existent transaction
table=1   slot=0
lockid=2   ktbbhitc=2
Block 174 failed with check code 6101

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing   (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing   (Index): 0
Total Blocks 
Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED

BBED> p kdbh
struct kdbh, 14 bytes                       @100
ub1 kdbhflag                             @100      0x01 (KDBHFFK)
sb1 kdbhntab                             @101      2
sb2 kdbhnrow                             @102      2
sb2 kdbhfrre                             @104     -1
sb2 kdbhfsbo                             @106      26
sb2 kdbhfseo                             @108      8056
sb2 kdbhavsp                             @110      8030
sb2 kdbhtosp                             @112      8040

BBED> d /v offset 102
count 4
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174     Offsets:  102 to  105  Dba:0x018000ae
-------------------------------------------------------
0200ffff                            l ....

<16 bytes per line>

BBED> modify /x 01 offset 102
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174              Offsets:  102 to  105           Dba:0x018000ae
------------------------------------------------------------------------
0100ffff

<32 bytes per line>

BBED> sum apply
Check value 
for File 6, Block 174:
current = 0x054f, required = 0x054f

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 174

Block Checking: DBA = 25165998, Block Type = KTB-managed data block
data header at 0x1112864
kdbchk: fsbo(26) wrong, (hsz 24)
Block 174 failed with check code 6129

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing   (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing   (Index): 0
Total Blocks 
Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED

BBED> d /v offset 106
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174     Offsets:  106 to  109  Dba:0x018000ae
-------------------------------------------------------
1a00781f                            l ..x.

<16 bytes per line>

BBED> modify /x 18 offset 106
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174              Offsets:  106 to  109           Dba:0x018000ae
------------------------------------------------------------------------
1800781f

<32 bytes per line>

BBED> sum apply
Check value 
for File 6, Block 174:
current = 0x054d, required = 0x054d

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 174

Block Checking: DBA = 25165998, Block Type = KTB-managed data block
data header at 0x1112864
kdbchk: row 
count in table index incorrect
Block 174 failed with check code 6125

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing   (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing   (Index): 0
Total Blocks 
Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED

BBED> p kdbt
struct kdbt[0], 4 bytes                     @114
sb2 kdbtoffs                             @114      0
sb2 kdbtnrow                             @116      1
struct kdbt[1], 4 bytes                     @118
sb2 kdbtoffs                             @118      1
sb2 kdbtnrow                             @120      1

BBED> p kdbt[1]
struct kdbt[1], 4 bytes                     @118
sb2 kdbtoffs                             @118      1
sb2 kdbtnrow                             @120      1

BBED> d /v offset 118
count 4
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174     Offsets:  118 to  121  Dba:0x018000ae
-------------------------------------------------------
01000100                            l ....

<16 bytes per line>

BBED> modify /x 000000 offset 118
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 174              Offsets:  118 to  121           Dba:0x018000ae
------------------------------------------------------------------------
00000000

<32 bytes per line>

BBED> sum apply
Check value 
for File 6, Block 174:
current = 0x054d, required = 0x054d

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 174

Block Checking: DBA = 25165998, Block Type = KTB-managed data block
data header at 0x1112864
kdbchk: table index offset incorrect
tab 1
Block 174 failed with check code 6124

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 1
Total Blocks Failing   (Data) : 1
Total Blocks Processed (Index): 0
Total Blocks Failing   (Index): 0
Total Blocks 
Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED







我們可以看到，無論怎麼修改，這個block通過bbed進行檢測都報錯，這裡不是因為修改的不對,而是因為

還需要修改cluster 上的Index信息。通過treedump 我們可以確認index block為file 6 block 187.
+++++ dump Index block


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SQL> oradebug setmypid
Statement processed.
SQL> alter system dump datafile 6 block 187;

System altered.

SQL> oradebug close_trace
Statement processed.
SQL> oradebug tracefile_name
/oracle/diag/rdbms/roger/roger/trace/roger_ora_17394.trc
SQL>







+++++ dump 內容如下


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Block header dump:  0x018000bb
Object id on Block? Y
seg/obj: 0x12ed2  csc: 0x00.b941a3  itc: 2  flg: E  typ: 2 - INDEX
brn: 0  bdba: 0x18000b8 ver: 0x01 opc: 0
inc: 0  exflg: 0

Itl           Xid                  Uba         Flag  Lck        Scn/Fsc
0x01   0x0000.000.00000000  0x00000000.0000.00  ----    0  fsc 0x0000.00000000
0x02   0x0009.002.0000044c  0x00c000f9.014a.1e  --U-    1  fsc 0x0000.00b941a4
Leaf block dump
===============
header address 140553058142820=0x7fd50f1a4a64
kdxcolev 0
KDXCOLEV Flags = - - -
kdxcolok 0
kdxcoopc 0x80: opcode=0: iot flags=--- is converted=Y
kdxconco 1
kdxcosdc 0
kdxconro 3
kdxcofbo 42=0x2a
kdxcofeo 7993=0x1f39
kdxcoavs 7951
kdxlespl 0
kdxlende 0
kdxlenxt 0=0x0
kdxleprv 0=0x0
kdxledsz 8
kdxlebksz 8032
row#0[8019] flag: ------, lock: 0, len=13, data:(8):  01 80 00 ac 00 00 01 00
col 0; len 2; (2):  c1 02
row#1[8006] flag: ------, lock: 0, len=13, data:(8):  01 80 00 ad 00 00 01 00
col 0; len 2; (2):  c1 03
row#2[7993] flag: ------, lock: 2, len=13, data:(8):  01 80 00 ae 00 00 01 00
col 0; len 2; (2):  c1 09
----- end of leaf block dump -----







可以看到，該index block中還存在3個index entry信息，我們需要將第3條信息給刪掉，首先計算一下offset：


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SQL> select
7993+76+24 from 
dual;

7993+76+24
----------
8093







+++++利用bbed修改 index block


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BBED> set file 6 block 187
FILE#           6
BLOCK#          187

BBED> map
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187                                   Dba:0x018000bb
------------------------------------------------------------
KTB Data Block (Index Leaf)

struct kcbh, 20 bytes                      @0

struct ktbbh, 72 bytes                     @20

struct kdxle, 32 bytes                     @100

sb2 kd_off[3]                              @132

ub1 freespace[7951]                        @138

ub1 rowdata[39]                            @8089

ub4 tailchk                                @8188

BBED> set offset 8093
OFFSET          8093

BBED> x /rn
rowdata[4]                                  @8093
----------
flag@8093:     0x00 (NONE)
lock@8094:     0x02
keydata[8]:    0x01  0x80  0x00  0xae  0x00  0x00  0x01  0x00
data key:
col    0[2] @8104: 8

BBED> map
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187                                   Dba:0x018000bb
------------------------------------------------------------
KTB Data Block (Index Leaf)

struct kcbh, 20 bytes                      @0

struct ktbbh, 72 bytes                     @20

struct kdxle, 32 bytes                     @100

sb2 kd_off[3]                              @132

ub1 freespace[7951]                        @138

ub1 rowdata[39]                            @8089

ub4 tailchk                                @8188

BBED> p kdxle
struct kdxle, 32 bytes                      @100
struct kdxlexco, 16 bytes                @100
ub1 kdxcolev                          @100      0x00
ub1 kdxcolok                          @101      0x00
ub1 kdxcoopc                          @102      0x80
ub1 kdxconco                          @103      0x01
ub4 kdxcosdc                          @104      0x00000000
sb2 kdxconro                          @108      3
sb2 kdxcofbo                          @110      42
sb2 kdxcofeo                          @112      7993
sb2 kdxcoavs                          @114      7951
sb2 kdxlespl                             @116      0
sb2 kdxlende                             @118      0
ub4 kdxlenxt                             @120      0x00000000
ub4 kdxleprv                             @124      0x00000000
ub1 kdxledsz                             @128      0x08
ub1 kdxleflg                             @129      0x00 (NONE)

BBED> d /v offset 118 count 2
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187     Offsets:  118 to  119  Dba:0x018000bb
-------------------------------------------------------
0000                                l ..

<16 bytes per line>

BBED> modify /x 01 offset 118
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187              Offsets:  118 to  119           Dba:0x018000bb
------------------------------------------------------------------------
0100

<32 bytes per line>

BBED> sum apply
Check value for File 6, Block 187:
current = 0x4faa, required = 0x4faa

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 187

Block Checking: DBA = 25166011, Block Type = KTB-managed data block
**** actual rows marked deleted = 0 != kdxlende = 1
---- end index block validation
Block 187 failed with check code 6401

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 0
Total Blocks Failing   (Data) : 0
Total Blocks Processed (Index): 1
Total Blocks Failing   (Index): 1
Total Blocks Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED

BBED> set offset 8093
OFFSET          8093

BBED> x /rn
rowdata[4]                                  @8093
----------
flag@8093:     0x00 (NONE)
lock@8094:     0x02
keydata[8]:    0x01  0x80  0x00  0xae  0x00  0x00  0x01  0x00
data key:
col    0[2] @8104: 8

BBED> modify /x 01 offset 8093
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187              Offsets: 8093 to 8094           Dba:0x018000bb
------------------------------------------------------------------------
0102

<32 bytes per line>

BBED> sum apply
Check value for File 6, Block 187:
current = 0x4eaa, required = 0x4eaa

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 187

Block Checking: DBA = 25166011, Block Type = KTB-managed data block
**** actual free space credit for itl 2 = 15 != # in trans. hdr = 0
---- end index block validation
Block 187 failed with check code 6401

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 0
Total Blocks Failing   (Data) : 0
Total Blocks Processed (Index): 1
Total Blocks Failing   (Index): 1
Total Blocks Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED

BBED> map
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187                                   Dba:0x018000bb
------------------------------------------------------------
KTB Data Block (Index Leaf)

struct kcbh, 20 bytes                      @0

struct ktbbh, 72 bytes                     @20

struct kdxle, 32 bytes                     @100

sb2 kd_off[3]                              @132

ub1 freespace[7951]                        @138

ub1 rowdata[39]                            @8089

ub4 tailchk                                @8188

BBED> p ktbbh
struct ktbbh, 72 bytes                      @20
ub1 ktbbhtyp                             @20       0x02 (KDDBTINDEX)
union ktbbhsid, 4 bytes                  @24
ub4 ktbbhsg1                          @24       0x00012ed2
ub4 ktbbhod1                          @24       0x00012ed2
struct ktbbhcsc, 8 bytes                 @28
ub4 kscnbas                           @28       0x00b941a3
ub2 kscnwrp                           @32       0x0000
sb2 ktbbhict                             @36       2
ub1 ktbbhflg                             @38       0x32 (NONE)
ub1 ktbbhfsl                             @39       0x00
ub4 ktbbhfnx                             @40       0x018000b8
struct ktbbhitl[0], 24 bytes             @44
struct ktbitxid, 8 bytes              @44
ub2 kxidusn                        @44       0x0000
ub2 kxidslt                        @46       0x0000
ub4 kxidsqn                        @48       0x00000000
struct ktbituba, 8 bytes              @52
ub4 kubadba                        @52       0x00000000
ub2 kubaseq                        @56       0x0000
ub1 kubarec                        @58       0x00
ub2 ktbitflg                          @60       0x0000 (NONE)
union _ktbitun, 2 bytes               @62
sb2 _ktbitfsc                      @62       0
ub2 _ktbitwrp                      @62       0x0000
ub4 ktbitbas                          @64       0x00000000
struct ktbbhitl[1], 24 bytes             @68
struct ktbitxid, 8 bytes              @68
ub2 kxidusn                        @68       0x0009
ub2 kxidslt                        @70       0x0002
ub4 kxidsqn                        @72       0x0000044c
struct ktbituba, 8 bytes              @76
ub4 kubadba                        @76       0x00c000f9
ub2 kubaseq                        @80       0x014a
ub1 kubarec                        @82       0x1e
ub2 ktbitflg                          @84       0x2001 (KTBFUPB)
union _ktbitun, 2 bytes               @86
sb2 _ktbitfsc                      @86       0
ub2 _ktbitwrp                      @86       0x0000
ub4 ktbitbas                          @88       0x00b941a4

BBED> d /v offset 86 count 2
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187     Offsets:   86 to   87  Dba:0x018000bb
-------------------------------------------------------
0000                                l ..

<16 bytes per line>

BBED> modify /x 0f offset 86
File: /oracle/oradata/roger/roger01.dbf (6)
Block: 187              Offsets:   86 to   87           Dba:0x018000bb
------------------------------------------------------------------------
0f00

<32 bytes per line>

BBED> sum apply
Check value for File 6, Block 187:
current = 0x4ea5, required = 0x4ea5

BBED> verify
DBVERIFY - Verification starting
FILE = /oracle/oradata/roger/roger01.dbf
BLOCK = 187

DBVERIFY - Verification complete

Total Blocks Examined         : 1
Total Blocks Processed (Data) : 0
Total Blocks Failing   (Data) : 0
Total Blocks Processed (Index): 1
Total Blocks Failing   (Index): 0
Total Blocks Empty            : 0
Total Blocks Marked Corrupt   : 0
Total Blocks Influx           : 0
Message 531 not found;  product=RDBMS; facility=BBED







到這裡，我們完成了Index Block的修改，最後我們再來校驗一下前面的data block，你會發現已經ok了，如下：
BBED> set file 2 block 174

FILE#           2

BLOCK#          174
BBED> verify

DBVERIFY – Verification starting

FILE = /oracle/oradata/roger/sysaux01.dbf

BLOCK = 174

DBVERIFY – Verification complete
Total Blocks Examined         : 1

Total Blocks Processed (Data) : 0

Total Blocks Failing   (Data) : 0

Total Blocks Processed (Index): 0

Total Blocks Failing   (Index): 0

Total Blocks Empty            : 1

Total Blocks Marked Corrupt   : 0

Total Blocks Influx           : 0

Message 531 not found;  product=RDBMS; facility=BBED

BBED>

+++++ 最後來驗證下數據


?




1
2
3
4
5
6
7
8
9
10



SQL> alter
system flush buffer_cache;

System altered.

SQL> select
* from 
roger.t_0610;

ID NAME
---------- -------------
1 baidu
2 google







至此，整個模擬測試結束，供參考！


						
							
						
						
						
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