Oracle dump datafile block有两种方式:
然后根据block id执行dump 命令：
SQL> alter system dump datafile 4 block 20;
如果要dump 多个block，命令如下：
SQL>ALTER SYSTEM dump datafile <file_id> block min<block_id> block max <block_id+blocks-1>;
根据Rowid 查询对应的block number 和datafile number：
SQL> SELECT dbms_rowid.rowid_relative_fno(rowid) REL_FNO,
dbms_rowid.rowid_block_number(rowid) BLOCKNO,
dbms_rowid.rowid_row_number(rowid) ROWNO,
empno,
ename
FROM emp
WHERE empno = 7369; 2 3 4 5 6 7
REL_FNO BLOCKNO ROWNO EMPNO ENAME
---------- ---------- ---------- ---------- ----------
4 151 0 7369 SMITH
然后根据block id执行dump 命令：
SQL> alter system dump datafile 4 block 151;
Trace file /oracle/app/diag/rdbms/june/june/trace/june_ora_21915.trc
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /oracle/app/product/11.2.0/db
System name: Linux
Node name: june
Release: 2.6.18-128.el5
Version: #1 SMP Wed Jan 21 10:44:23 EST 2009
Machine: i686
Instance name: june
Redo thread mounted by this instance: 1
Oracle process number: 26
Unix process pid: 21915, image: oracle@june (TNS V1-V3)
*** 2000-11-19 11:56:48.345
*** SESSION ID:(39.120) 2000-11-19 11:56:48.345
*** CLIENT ID:() 2000-11-19 11:56:48.345
*** SERVICE NAME:(SYS$USERS) 2000-11-19 11:56:48.345
*** MODULE NAME:(sqlplus@june (TNS V1-V3)) 2000-11-19 11:56:48.345
*** ACTION NAME:() 2000-11-19 11:56:48.345
Start dump data blocks tsn: 4 file#:4 minblk 151 maxblk 151
Block dump from cache:
Dump of buffer cache at level 4 for tsn=4, rdba=16777367
BH (0x29be801c) file#: 4 rdba: 0x01000097 (4/151) class: 1 ba: 0x298ea000
set: 3 pool 3 bsz: 8192 bsi: 0 sflg: 1 pwc: 0,25
dbwrid: 0 obj: 73181 objn: 73181 tsn: 4 afn: 4 hint: f
hash: [0x34b657a4,0x34b657a4] lru: [0x21be7530,0x29fec3dc]
ckptq: [NULL] fileq: [NULL] objq: [0x2d6a7858,0x223f4a1c]
st: XCURRENT md: NULL tch: 2
flags:
LRBA: [0x0.0.0] LSCN: [0x0.0] HSCN: [0xffff.ffffffff] HSUB: [65535]
cr pin refcnt: 0 sh pin refcnt: 0
Block dump from disk:
buffer tsn: 4 rdba: 0x01000097 (4/151)
scn: 0x0000.000b6f31 seq: 0x01 flg: 0x06 tail: 0x6f310601
frmt: 0x02 chkval: 0xf091 type: 0x06=trans data
Hex dump of block: st=0, typ_found=1
Dump of memory from 0x00DCA600 to 0x00DCC600
DCA600 0000A206 01000097 000B6F31 06010000 [........1o......]
DCA610 0000F091 00000001 00011DDD 000B6F2F [............/o..]
DCA620 00000000 00320002 01000090 00100001 [......2.........]
DCA630 00000198 00C15AB0 00120061 0000200E [.....Z..a.... ..]
DCA640 000B6F31 00000000 00000000 00000000 [1o..............]
DCA650 00000000 00000000 00000000 00000000 [................]
DCA660 00000000 000E0100 002EFFFF 1D331D61 [............a.3.]
DCA670 00001D33 1F72000E 1F1C1F47 1EC61EF3 [3.....r.G.......]
DCA680 1E741E9D 1E261E4C 1DD51DFB 1D881DAF [..t.L.&.........]
DCA690 00001D61 00000000 00000000 00000000 [a...............]
DCA6A0 00000000 00000000 00000000 00000000 [................]
Repeat 465 times
DCC3C0 00000000 08012C00 2350C203 4C494D06 [.....,....P#.MIL]
DCC3D0 0552454C 52454C43 4EC2034B B6770753 [LER.CLERK..NS.w.]
DCC3E0 01011701 0EC20201 0BC102FF 0308012C [............,...]
DCC3F0 040350C2 44524F46 414E4107 5453594C [.P..FORD.ANALYST]
DCC400 434CC203 0CB57707 01010103 FF1FC202 [..LC.w..........]
DCC410 2C15C102 C2020801 414A0550 0553454D [...,....P.JAMES.]
DCC420 52454C43 4DC2034B B5770763 0101030C [CLERK..Mc.w.....]
DCC430 0AC20301 C102FF33 08012C1F 4D4FC203 [....3....,....OM]
DCC440 41444105 4305534D 4B52454C 594EC203 [.ADAMS.CLERK..NY]
DCC450 05BB7707 01010117 FF0CC202 2C15C102 [.w.............,]
DCC460 C2030801 54062D4F 454E5255 41530852 [....O-.TURNER.SA]
DCC470 4D53454C C2034E41 7707634D 010809B5 [LESMAN..Mc.w....]
DCC480 C2020101 02800110 012C1FC1 4FC20308 [..........,....O]
DCC490 494B0428 5009474E 49534552 544E4544 [(.KING.PRESIDENT]
DCC4A0 B57707FF 0101110B 33C20201 0BC102FF [..w........3....]
DCC4B0 0308012C 05594EC2 544F4353 4E410754 [,....NY.SCOTT.AN]
DCC4C0 53594C41 4CC20354 BB770743 01011304 [ALYST..LC.w.....]
DCC4D0 1FC20201 15C102FF 0308012C 05534EC2 [........,....NS.]
DCC4E0 52414C43 414D074B 4547414E 4FC20352 [CLARK.MANAGER..O]
DCC4F0 B5770728 01010906 19C20301 C102FF33 [(.w.........3...]
DCC500 08012C0B 634DC203 414C4205 4D07454B [.,....Mc.BLAKE.M]
DCC510 47414E41 C2035245 7707284F 010105B5 [ANAGER..O(.w....]
DCC520 C2030101 02FF331D 012C1FC1 4DC20308 [.....3....,....M]
DCC530 414D0637 4E495452 4C415308 414D5345 [7.MARTIN.SALESMA]
DCC540 4DC2034E B5770763 01011C09 0DC20301 [N..Mc.w.........]
DCC550 0FC20233 2C1FC102 C2030801 4A05434C [3......,....LC.J]
DCC560 53454E4F 4E414D07 52454741 284FC203 [ONES.MANAGER..O(]
DCC570 04B57707 01010102 4C1EC203 15C102FF [.w.........L....]
DCC580 0308012C 04164CC2 44524157 4C415308 [,....L..WARD.SAL]
DCC590 414D5345 4DC2034E B5770763 01011602 [ESMAN..Mc.w.....]
DCC5A0 0DC20301 06C20233 2C1FC102 C2030801 [....3......,....]
DCC5B0 4105644B 4E454C4C 4C415308 414D5345 [Kd.ALLEN.SALESMA]
DCC5C0 4DC2034E B5770763 01011402 11C20201 [N..Mc.w.........]
DCC5D0 0204C202 012C1FC1 4AC20308 4D530546 [......,....JF.SM]
DCC5E0 05485449 52454C43 50C2034B B4770703 [ITH.CLERK..P..w.]
DCC5F0 0101110C 09C20201 15C102FF 6F310601 [..............1o]
Block header dump: 0x01000097
Object id on Block? Y
seg/obj: 0x11ddd csc: 0x00.b6f2f itc: 2 flg: E typ: 1 - DATA
brn: 0 bdba: 0x1000090 ver: 0x01 opc: 0
inc: 0 exflg: 0
Itl Xid Uba Flag Lck Scn/Fsc
0x01 0x0001.010.00000198 0x00c15ab0.0061.12 --U- 14 fsc 0x0000.000b6f31
0x02 0x0000.000.00000000 0x00000000.0000.00 ---- 0 fsc 0x0000.00000000
bdba: 0x01000097
data_block_dump,data header at 0xdca664
===============
tsiz: 0x1f98
hsiz: 0x2e
pbl: 0x00dca664
76543210
flag=--------
ntab=1
nrow=14
frre=-1
fsbo=0x2e
fseo=0x1d61
avsp=0x1d33
tosp=0x1d33
0xe:pti[0] nrow=14 offs=0
0x12:pri[0] offs=0x1f72
0x14:pri[1] offs=0x1f47
0x16:pri[2] offs=0x1f1c
0x18:pri[3] offs=0x1ef3
0x1a:pri[4] offs=0x1ec6
0x1c:pri[5] offs=0x1e9d
0x1e:pri[6] offs=0x1e74
0x20:pri[7] offs=0x1e4c
0x22:pri[8] offs=0x1e26
0x24:pri[9] offs=0x1dfb
0x26:pri[10] offs=0x1dd5
0x28:pri[11] offs=0x1daf
0x2a:pri[12] offs=0x1d88
0x2c:pri[13] offs=0x1d61
block_row_dump:
tab 0, row 0, @0x1f72
tl: 38 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4a 46
col 1: [ 5] 53 4d 49 54 48
col 2: [ 5] 43 4c 45 52 4b
col 3: [ 3] c2 50 03
col 4: [ 7] 77 b4 0c 11 01 01 01
col 5: [ 2] c2 09
col 6: *NULL*
col 7: [ 2] c1 15
tab 0, row 1, @0x1f47
tl: 43 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4b 64
col 1: [ 5] 41 4c 4c 45 4e
col 2: [ 8] 53 41 4c 45 53 4d 41 4e
col 3: [ 3] c2 4d 63
col 4: [ 7] 77 b5 02 14 01 01 01
col 5: [ 2] c2 11
col 6: [ 2] c2 04
col 7: [ 2] c1 1f
tab 0, row 2, @0x1f1c
tl: 43 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4c 16
col 1: [ 4] 57 41 52 44
col 2: [ 8] 53 41 4c 45 53 4d 41 4e
col 3: [ 3] c2 4d 63
col 4: [ 7] 77 b5 02 16 01 01 01
col 5: [ 3] c2 0d 33
col 6: [ 2] c2 06
col 7: [ 2] c1 1f
tab 0, row 3, @0x1ef3
tl: 41 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4c 43
col 1: [ 5] 4a 4f 4e 45 53
col 2: [ 7] 4d 41 4e 41 47 45 52
col 3: [ 3] c2 4f 28
col 4: [ 7] 77 b5 04 02 01 01 01
col 5: [ 3] c2 1e 4c
col 6: *NULL*
col 7: [ 2] c1 15
tab 0, row 4, @0x1ec6
tl: 45 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4d 37
col 1: [ 6] 4d 41 52 54 49 4e
col 2: [ 8] 53 41 4c 45 53 4d 41 4e
col 3: [ 3] c2 4d 63
col 4: [ 7] 77 b5 09 1c 01 01 01
col 5: [ 3] c2 0d 33
col 6: [ 2] c2 0f
col 7: [ 2] c1 1f
tab 0, row 5, @0x1e9d
tl: 41 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4d 63
col 1: [ 5] 42 4c 41 4b 45
col 2: [ 7] 4d 41 4e 41 47 45 52
col 3: [ 3] c2 4f 28
col 4: [ 7] 77 b5 05 01 01 01 01
col 5: [ 3] c2 1d 33
col 6: *NULL*
col 7: [ 2] c1 1f
tab 0, row 6, @0x1e74
tl: 41 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4e 53
col 1: [ 5] 43 4c 41 52 4b
col 2: [ 7] 4d 41 4e 41 47 45 52
col 3: [ 3] c2 4f 28
col 4: [ 7] 77 b5 06 09 01 01 01
col 5: [ 3] c2 19 33
col 6: *NULL*
col 7: [ 2] c1 0b
tab 0, row 7, @0x1e4c
tl: 40 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4e 59
col 1: [ 5] 53 43 4f 54 54
col 2: [ 7] 41 4e 41 4c 59 53 54
col 3: [ 3] c2 4c 43
col 4: [ 7] 77 bb 04 13 01 01 01
col 5: [ 2] c2 1f
col 6: *NULL*
col 7: [ 2] c1 15
tab 0, row 8, @0x1e26
tl: 38 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4f 28
col 1: [ 4] 4b 49 4e 47
col 2: [ 9] 50 52 45 53 49 44 45 4e 54
col 3: *NULL*
col 4: [ 7] 77 b5 0b 11 01 01 01
col 5: [ 2] c2 33
col 6: *NULL*
col 7: [ 2] c1 0b
tab 0, row 9, @0x1dfb
tl: 43 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4f 2d
col 1: [ 6] 54 55 52 4e 45 52
col 2: [ 8] 53 41 4c 45 53 4d 41 4e
col 3: [ 3] c2 4d 63
col 4: [ 7] 77 b5 09 08 01 01 01
col 5: [ 2] c2 10
col 6: [ 1] 80
col 7: [ 2] c1 1f
tab 0, row 10, @0x1dd5
tl: 38 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 4f 4d
col 1: [ 5] 41 44 41 4d 53
col 2: [ 5] 43 4c 45 52 4b
col 3: [ 3] c2 4e 59
col 4: [ 7] 77 bb 05 17 01 01 01
col 5: [ 2] c2 0c
col 6: *NULL*
col 7: [ 2] c1 15
tab 0, row 11, @0x1daf
tl: 38 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 2] c2 50
col 1: [ 5] 4a 41 4d 45 53
col 2: [ 5] 43 4c 45 52 4b
col 3: [ 3] c2 4d 63
col 4: [ 7] 77 b5 0c 03 01 01 01
col 5: [ 3] c2 0a 33
col 6: *NULL*
col 7: [ 2] c1 1f
tab 0, row 12, @0x1d88
tl: 39 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 50 03
col 1: [ 4] 46 4f 52 44
col 2: [ 7] 41 4e 41 4c 59 53 54
col 3: [ 3] c2 4c 43
col 4: [ 7] 77 b5 0c 03 01 01 01
col 5: [ 2] c2 1f
col 6: *NULL*
col 7: [ 2] c1 15
tab 0, row 13, @0x1d61
tl: 39 fb: --H-FL-- lb: 0x1 cc: 8
col 0: [ 3] c2 50 23
col 1: [ 6] 4d 49 4c 4c 45 52
col 2: [ 5] 43 4c 45 52 4b
col 3: [ 3] c2 4e 53
col 4: [ 7] 77 b6 01 17 01 01 01
col 5: [ 2] c2 0e
col 6: *NULL*
col 7: [ 2] c1 0b
end_of_block_dump
End dump data blocks tsn: 4 file#: 4 minblk 151 maxblk 151
从End dump data blocks tsn: 4 file#: 4 minblk 151 maxblk 151 可以看到是dump了 数据文件4的151号块
这里的row 13下的colo col1 ....代表每列对应的值 可以看到 这个有8列
col 0: [ 3] c2 50 23 表示第一列的值为7934
SQL> declare n number;
2 begin
3 dbms_stats.convert_raw_value('c25023',n);
4 dbms_output.put_line(n);
5 end;
6 /
7934
PL/SQL procedure successfully completed.
col 1: [ 6] 4d 49 4c 4c 45 52 第2列的值为
SQL> declare n VARCHAR2(10);
2 begin
3 dbms_stats.convert_raw_value('4d494c4c4552',n);
4 dbms_output.put_line(n);
5 end;
6 /
MILLER
PL/SQL procedure successfully completed.
col 2: [ 5] 43 4c 45 52 4b 第3列的值为
SQL> declare n VARCHAR2(9);
2 begin
3 dbms_stats.convert_raw_value('434c45524b',n);
4 dbms_output.put_line(n);
5 end;
6 /
CLERK
PL/SQL procedure successfully completed.
col 3: [ 3] c2 4e 53 第4列的值为:
SQL> declare n number
2 ;
3 begin
4 dbms_stats.convert_raw_value('c24e53',n);
5 dbms_output.put_line(n);
6 end;
7 /
7782
PL/SQL procedure successfully completed
col 4: [ 7] 77 b6 01 17 01 01 01 第5列的值为:
SQL> declare n date;
2 begin
3 dbms_stats.convert_raw_value('77b60117010101',n);
4 dbms_output.put_line(n);
5 end;
6 /
23-JAN-82
PL/SQL procedure successfully completed.
col 5: [ 2] c2 0e 第6列的值为；
SQL> declare n NUMBER(7,2);
2 begin
3 dbms_stats.convert_raw_value('c20e',n);
4 dbms_output.put_line(n);
5 end;
6 /
1300
PL/SQL procedure successfully completed.
col 6: *NULL* 第7列为空值
col 7: [ 2] c1 0b 第8列的值为
SQL> declare n NUMBER(2);
2 begin
3 dbms_stats.convert_raw_value('c10b',n);
4 dbms_output.put_line(n);
5 end;
6 /
10
PL/SQL procedure successfully completed.
查看这条记录的值:
SQL> select * from emp where empno=7934;
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
---------- ---------- --------- ---------- --------- ---------- ---------- ----------
7934 MILLER CLERK 7782 23-JAN-82 1300 10