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标题:使用_disable_logging即可禁止日志的生成收藏 编辑 删除 楼主 | 上一篇 下一篇
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资料 短消息2008-5-16 10:08:53
在我们的实际的工作中,非归档模式下(注:归档模式会导致日志损坏)使用_disable_logging可以禁止日志的生成,在此条件下可以很大的提高某些特殊操作(例如批量加载或者Benchmark测试等)的性能。

禁止完成的参考示例:

首先我们需要启动两个Session,一个用来管理,一个用来测试。

1.Session 1 ,使用SYS用户连接数据库,当前_disable_logging没有设置,数据库处于正常的状态。

$ sqlplus "/ as sysdba"

SQL*Plus: Release 9.2.0.4.0 - Production on Fri Apr 14 09:30:42 2006

Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.

Connected to:

Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production

With the Partitioning option

JServer Release 9.2.0.4.0 - Production

SQL> col member for a40

SQL> select * from v$logfile;

GROUP# STATUS TYPE MEMBER

---------- ------- -------

1 ONLINE /opt/oracle9/oradata/testora9/redo01.log

2 ONLINE /opt/oracle9/oradata/testora9/redo02.log

3 ONLINE /opt/oracle9/oradata/testora9/redo03.log

SQL> alter system switch logfile;

System altered.

SQL> select * from v$log;

GROUP# THREAD# SEQUENCE# BYTES MEMBERS

ARC STATUS FIRST_CHANGE# FIRST_TIM

---------- ---------- ---------- ----------

1 1 148 104857600 1 NO CURRENT 262708457 14-APR-06

2 1 146 104857600 1 NO INACTIVE 262662667 14-APR-06

3 1 147 104857600 1 NO ACTIVE 262675537 14-APR-06

2.Session 2则通过SCOTT用户连接,具体执行下面的更新:

SQL> connect scott/tiger

Connected.

SQL> update emp set sal=3000 where empno=7788;

1 row updated.

SQL> commit;

Commit complete.

3.在Session转储REDO日志

SQL> ALTER SYSTEM DUMP LOGFILE '

/opt/oracle9/oradata/testora9/redo01.log';

System altered.

4.观察跟踪文件,记录正常状态下的REDO信息

$ ls

testora9_ora_16037.trc

$ cat *

/opt/oracle9/admin/testora9/udump/testora9_ora_16037.trc

Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production

With the Partitioning option

JServer Release 9.2.0.4.0 - Production

ORACLE_HOME = /opt/oracle9/product/9.2.0

System name: SunOS

Node name: testdbserver.hurray.com.cn

Release: 5.8

Version: Generic_108528-25

Machine: sun4u

Instance name: testora9

Redo thread mounted by this instance: 1

Oracle process number: 15

Unix process pid: 16037, image: oracle@testdbserver.hurray.com.cn (TNS V1-V3)

*** 2006-04-14 09:32:01.356

*** SESSION ID:(17.3524) 2006-04-14 09:32:01.340

DUMP OF REDO FROM FILE '/opt/oracle9/oradata/testora9/redo01.log'

Opcodes *.*

DBA's: (file # 0, block # 0) thru (file # 65534, block # 4194303)

RBA's: 0x000000.00000000.0000 thru 0xffffffff.ffffffff.ffff

SCN's scn: 0x0000.00000000 thru scn: 0xffff.ffffffff

Times: creation thru eternity

FILE HEADER:

Software vsn=153092096=0x9200000, Compatibility Vsn=153092096=0x9200000

Db ID=1628068176=0x610a5950, Db Name='TESTORA9'

Activation ID=1628067152=0x610a5550

Control Seq=1161=0x489, File size=204800=0x32000

File Number=1, Blksiz=512, File Type=2 LOG

descrip:"Thread 0001, Seq# 0000000148, SCN 0x00000fa89ce9-0xffffffffffff"

thread: 1 nab: 0xffffffff seq: 0x00000094 hws: 0x1 eot: 1 dis: 0

reset logs count: 0x1f435110 scn: 0x0000.00000001

Low scn: 0x0000.0fa89ce9 04/14/2006 09:31:06

2008-5-16 10:08:53 顶部
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Next scn: 0xffff.ffffffff 01/01/1988 00:00:00

Enabled scn: 0x0000.00000001 04/26/2004 15:56:10

Thread closed scn: 0x0000.0fa89ce9 04/14/2006 09:31:06

Log format vsn: 0x8000000 Disk cksum: 0x9930 Calc cksum: 0x9930

Terminal Recovery Stamp scn: 0x0000.00000000 01/01/1988 00:00:00

Most recent redo scn: 0x0000.00000000

Largest LWN: 0 blocks

End-of-redo stream : No

Unprotected mode

Miscellaneous flags: 0x0

REDO RECORD - Thread:1 RBA: 0x000094.00000002.0010 LEN: 0x01b0 VLD: 0x01

SCN: 0x0000.0fa89cf0 SUBSCN: 1 04/14/2006 09:31:30

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cca SEQ: 1 OP:5.2

ktudh redo: slt: 0x000f sqn: 0x00009c89 flg: 0x000a siz: 132 fbi: 0

uba: 0x00800559.0352.01 pxid: 0x0000.000.00000000

CHANGE #2 TYP:1 CLS:34 AFN:2 DBA:0x00800559 SCN:0x0000.0fa89cf0 SEQ: 1 OP:5.1

ktudb redo: siz: 132 spc: 0 flg: 0x000a seq: 0x0352 rec: 0x01

xid: 0x0009.00f.00009c89

ktubl redo: slt: 15 rci: 0 opc: 11.1 objn: 30359 objd: 30359 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x00800558.0352.57

prev ctl max cmt scn: 0x0000.0fa89887 prev tx cmt scn: 0x0000.0fa8988b

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0005.01e.00009810 uba: 0x00800615.032f.26

flg: C--- lkc: 0 scn: 0x0000.0f92af59

KDO Op code: URP row dependencies Disabled

xtype: XA bdba: 0x0040a482 hdba: 0x0040a481

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 7(0x7) flag: 0x2c lock: 0 ckix: 0

ncol: 8 nnew: 1 size: 0

col 5: [ 2] c2 29

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x0040a482 SCN:0x0000.0f92ced1 SEQ: 1 OP:11.5

KTB Redo

op: 0x11 ver: 0x01

op: F xid: 0x0009.00f.00009c89 uba: 0x00800559.0352.01

Block cleanout record, scn: 0x0000.0fa89cf0 ver: 0x01 opt: 0x02, entries follow...

itli: 2 flg: 2 scn: 0x0000.0f92ced1

KDO Op code: URP row dependencies Disabled

xtype: XA bdba: 0x0040a482 hdba: 0x0040a481

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 7(0x7) flag: 0x2c lock: 1 ckix: 0

ncol: 8 nnew: 1 size: 0

col 5: [ 2] c2 1f

CHANGE #4 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 16

serial number = 651

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.00000002.01c0 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cf1 SUBSCN: 1 04/14/2006 09:31:30

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cf0 SEQ: 1 OP:5.4

ktucm redo: slt: 0x000f sqn: 0x00009c89 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x00800559.0352.01 ext: 2 spc: 8016 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.00000004.0010 LEN: 0x01f4 VLD: 0x01

SCN: 0x0000.0fa89cf2 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89ccc SEQ: 1 OP:5.2

ktudh redo: slt: 0x001b sqn: 0x00009c9b flg: 0x0012 siz: 108 fbi: 0

uba: 0x0080046b.0345.40 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:22 AFN:2 DBA:0x0080046b SCN:0x0000.0fa89ccb SEQ: 1 OP:5.1

ktudb redo: siz: 108 spc: 2908 flg: 0x0012 seq: 0x0345 rec: 0x40

xid: 0x0003.01b.00009c9b

ktubl redo: slt: 27 rci: 0 opc: 11.1 objn: 3643 objd: 3643 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x0080046b.0345.3f

prev ctl max cmt scn: 0x0000.0fa89888 prev tx cmt scn: 0x0000.0fa8988d

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0002.021.0000a088 uba: 0x0080091e.0714.47

flg: C--- lkc: 0 scn: 0x0000.0fa89ce0

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 0 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x00401f7a SCN:0x0000.0fa89ce3 SEQ: 1 OP:11.4

KTB Redo

op: 0x11 ver: 0x01

op: F xid: 0x0003.01b.00009c9b uba: 0x0080046b.0345.40

Block cleanout record, scn: 0x0000.0fa89cf2 ver: 0x01 opt: 0x02, entries follow...

itli: 1 flg: 2 scn: 0x0000.0fa89ce0

itli: 2 flg: 2 scn: 0x0000.0fa89ce3

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 0 to: 1

CHANGE #4 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.19

session number = 8

serial number = 1

current username = SYS

login username =

client info =

OS username = oracle9

Machine name = testdbserver.hurray.com.cn

OS terminal = UNKNOWN

OS process id = 2053

OS program name = oracle@testdbserver.hurray.com.cn (QMN0)

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.00000005.0014 LEN: 0x00dc VLD: 0x01

SCN: 0x0000.0fa89cf2 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:22 AFN:2 DBA:0x0080046b SCN:0x0000.0fa89cf2 SEQ: 1 OP:5.1

ktudb redo: siz: 84 spc: 2798 flg: 0x0022 seq: 0x0345 rec: 0x41

xid: 0x0003.01b.00009c9b

ktubu redo: slt: 27 rci: 64 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0008.01b.00009c85 uba: 0x008007a3.037e.0b

flg: C--- lkc: 0 scn: 0x0000.0fa89ce3

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 0 to: 0

CHANGE #2 TYP:2 CLS: 1 AFN:1 DBA:0x00401f3a SCN:0x0000.0fa89ce5 SEQ: 1 OP:11.4

KTB Redo

op: 0x01 ver: 0x01

op: F xid: 0x0003.01b.00009c9b uba: 0x0080046b.0345.41

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 0 to: 1

REDO RECORD - Thread:1 RBA: 0x000094.00000005.00f0 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cf3 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89cf2 SEQ: 1 OP:5.4

ktucm redo: slt: 0x001b sqn: 0x00009c9b srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x0080046b.0345.41 ext: 2 spc: 2712 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.00000006.0010 LEN: 0x0188 VLD: 0x01

SCN: 0x0000.0fa89cf5 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:27 AFN:2 DBA:0x00800059 SCN:0x0000.0fa89ccd SEQ: 1 OP:5.2

ktudh redo: slt: 0x0020 sqn: 0x00009c72 flg: 0x0012 siz: 108 fbi: 0

uba: 0x0080027b.0352.1d pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:28 AFN:2 DBA:0x0080027b SCN:0x0000.0fa89ccc SEQ: 1 OP:5.1

ktudb redo: siz: 108 spc: 5718 flg: 0x0012 seq: 0x0352 rec: 0x1d

xid: 0x0006.020.00009c72

ktubl redo: slt: 32 rci: 0 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x0080027b.0352.1c

prev ctl max cmt scn: 0x0000.0fa8988a prev tx cmt scn: 0x0000.0fa8988e

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0002.01a.0000a089 uba: 0x0080091e.0714.49

flg: C--- lkc: 0 scn: 0x0000.0fa89ce5

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 0 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x00401f3a SCN:0x0000.0fa89cf3 SEQ: 1 OP:11.4

KTB Redo

op: 0x11 ver: 0x01

op: F xid: 0x0006.020.00009c72 uba: 0x0080027b.0352.1d

Block cleanout record, scn: 0x0000.0fa89cf5 ver: 0x01 opt: 0x02, entries follow...

2008-5-16 10:09:05 顶部
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itli: 1 flg: 2 scn: 0x0000.0fa89cf3

itli: 2 flg: 2 scn: 0x0000.0fa89ce5

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 0 to: 2

CHANGE #4 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.00000006.0198 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cf6 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:27 AFN:2 DBA:0x00800059 SCN:0x0000.0fa89cf5 SEQ: 1 OP:5.4

ktucm redo: slt: 0x0020 sqn: 0x00009c72 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x0080027b.0352.1d ext: 2 spc: 5608 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.00000007.0010 LEN: 0x00d4 VLD: 0x01

SCN: 0x0000.0fa89cf7 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cf1 SEQ: 1 OP:5.2

ktudh redo: slt: 0x0027 sqn: 0x00009c88 flg: 0x0011 siz: 52 fbi: 0

uba: 0x00800559.0352.02 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:34 AFN:2 DBA:0x00800559 SCN:0x0000.0fa89cf0 SEQ: 2 OP:5.1

ktudb redo: siz: 52 spc: 8016 flg: 0x0012 seq: 0x0352 rec: 0x02

xid: 0x0009.027.00009c88

ktubl redo: slt: 39 rci: 0 opc: 5.7 objn: 0 objd: 0 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x00800559.0352.01

prev ctl max cmt scn: 0x0000.0fa8988b prev tx cmt scn: 0x0000.0fa89894

CHANGE #3 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.00000007.00e4 LEN: 0x0118 VLD: 0x01

SCN: 0x0000.0fa89cf8 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cf7 SEQ: 1 OP:5.2

ktudh redo: slt: 0x0027 sqn: 0x00000000 flg: 0x0002 siz: 84 fbi: 0

uba: 0x00800559.0352.03 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:34 AFN:2 DBA:0x00800559 SCN:0x0000.0fa89cf7 SEQ: 1 OP:5.1

ktudb redo: siz: 84 spc: 7962 flg: 0x0022 seq: 0x0352 rec: 0x03

xid: 0x0009.027.00009c88

ktubu redo: slt: 39 rci: 0 opc: 11.1 objn: 3643 objd: 3643 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0008.01b.00009c85 uba: 0x008007a3.037e.0a

flg: C--- lkc: 0 scn: 0x0000.0fa89ce3

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 1 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x00401f7a SCN:0x0000.0fa89cf3 SEQ: 1 OP:11.4

KTB Redo

op: 0x01 ver: 0x01

op: F xid: 0x0009.027.00009c88 uba: 0x00800559.0352.03

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 1 to: 2

REDO RECORD - Thread:1 RBA: 0x000094.00000008.0010 LEN: 0x00dc VLD: 0x01

SCN: 0x0000.0fa89cf8 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:34 AFN:2 DBA:0x00800559 SCN:0x0000.0fa89cf8 SEQ: 1 OP:5.1

ktudb redo: siz: 84 spc: 7876 flg: 0x0022 seq: 0x0352 rec: 0x04

xid: 0x0009.027.00009c88

ktubu redo: slt: 39 rci: 3 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0003.01b.00009c9b uba: 0x0080046b.0345.41

flg: C--- lkc: 0 scn: 0x0000.0fa89cf3

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 1 to: 0

CHANGE #2 TYP:2 CLS: 1 AFN:1 DBA:0x00401f3a SCN:0x0000.0fa89cf6 SEQ: 1 OP:11.4

KTB Redo

op: 0x01 ver: 0x01

op: F xid: 0x0009.027.00009c88 uba: 0x00800559.0352.04

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 1 to: 1

REDO RECORD - Thread:1 RBA: 0x000094.00000008.00ec LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cf9 SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cf8 SEQ: 1 OP:5.4

ktucm redo: slt: 0x0027 sqn: 0x00009c88 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x00800559.0352.04 ext: 2 spc: 7790 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.00000008.0140 LEN: 0x0188 VLD: 0x01

SCN: 0x0000.0fa89cfa SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89cf3 SEQ: 1 OP:5.2

ktudh redo: slt: 0x001a sqn: 0x00009c9b flg: 0x0012 siz: 108 fbi: 0

uba: 0x0080046b.0345.42 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:22 AFN:2 DBA:0x0080046b SCN:0x0000.0fa89cf2 SEQ: 2 OP:5.1

ktudb redo: siz: 108 spc: 2712 flg: 0x0012 seq: 0x0345 rec: 0x42

xid: 0x0003.01a.00009c9b

ktubl redo: slt: 26 rci: 0 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x0080046b.0345.40

prev ctl max cmt scn: 0x0000.0fa8988d prev tx cmt scn: 0x0000.0fa898e6

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0006.020.00009c72 uba: 0x0080027b.0352.1d

flg: C--- lkc: 0 scn: 0x0000.0fa89cf6

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 1 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x00401f3a SCN:0x0000.0fa89cf9 SEQ: 1 OP:11.4

KTB Redo

op: 0x11 ver: 0x01

op: F xid: 0x0003.01a.00009c9b uba: 0x0080046b.0345.42

Block cleanout record, scn: 0x0000.0fa89cfa ver: 0x01 opt: 0x02, entries follow...

itli: 1 flg: 2 scn: 0x0000.0fa89cf9

itli: 2 flg: 2 scn: 0x0000.0fa89cf6

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 1 to: 2

2008-5-16 10:09:18 顶部
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CHANGE #4 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.00000009.00d8 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cfb SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89cfa SEQ: 1 OP:5.4

ktucm redo: slt: 0x001a sqn: 0x00009c9b srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x0080046b.0345.42 ext: 2 spc: 2602 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.00000009.012c LEN: 0x00d4 VLD: 0x01

SCN: 0x0000.0fa89cfb SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:27 AFN:2 DBA:0x00800059 SCN:0x0000.0fa89cf6 SEQ: 1 OP:5.2

ktudh redo: slt: 0x000c sqn: 0x00009c72 flg: 0x0011 siz: 52 fbi: 0

uba: 0x0080027b.0352.1e pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:28 AFN:2 DBA:0x0080027b SCN:0x0000.0fa89cf5 SEQ: 1 OP:5.1

ktudb redo: siz: 52 spc: 5608 flg: 0x0012 seq: 0x0352 rec: 0x1e

xid: 0x0006.00c.00009c72

ktubl redo: slt: 12 rci: 0 opc: 5.7 objn: 0 objd: 0 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x0080027b.0352.1d

prev ctl max cmt scn: 0x0000.0fa8988e prev tx cmt scn: 0x0000.0fa89902

CHANGE #3 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.0000000a.0010 LEN: 0x0148 VLD: 0x01

SCN: 0x0000.0fa89cfb SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:27 AFN:2 DBA:0x00800059 SCN:0x0000.0fa89cfb SEQ: 1 OP:5.2

ktudh redo: slt: 0x000c sqn: 0x00000000 flg: 0x0002 siz: 84 fbi: 0

uba: 0x0080027b.0352.1f pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:28 AFN:2 DBA:0x0080027b SCN:0x0000.0fa89cfb SEQ: 1 OP:5.1

ktudb redo: siz: 84 spc: 5554 flg: 0x0022 seq: 0x0352 rec: 0x1f

xid: 0x0006.00c.00009c72

ktubu redo: slt: 12 rci: 0 opc: 11.1 objn: 3643 objd: 3643 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0003.01b.00009c9b uba: 0x0080046b.0345.40

flg: C--- lkc: 0 scn: 0x0000.0fa89cf3

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 2 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x00401f7a SCN:0x0000.0fa89cf9 SEQ: 1 OP:11.4

KTB Redo

op: 0x11 ver: 0x01

op: F xid: 0x0006.00c.00009c72 uba: 0x0080027b.0352.1f

Block cleanout record, scn: 0x0000.0fa89cfb ver: 0x01 opt: 0x02, entries follow...

itli: 1 flg: 2 scn: 0x0000.0fa89cf3

itli: 2 flg: 2 scn: 0x0000.0fa89cf9

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 2 to: 1

REDO RECORD - Thread:1 RBA: 0x000094.0000000a.0158 LEN: 0x00dc VLD: 0x01

SCN: 0x0000.0fa89cfb SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:28 AFN:2 DBA:0x0080027b SCN:0x0000.0fa89cfb SEQ: 2 OP:5.1

ktudb redo: siz: 84 spc: 5468 flg: 0x0022 seq: 0x0352 rec: 0x20

xid: 0x0006.00c.00009c72

ktubu redo: slt: 12 rci: 31 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0009.027.00009c88 uba: 0x00800559.0352.04

flg: C--- lkc: 0 scn: 0x0000.0fa89cf9

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 2 to: 0

CHANGE #2 TYP:2 CLS: 1 AFN:1 DBA:0x00401f3a SCN:0x0000.0fa89cfb SEQ: 1 OP:11.4

KTB Redo

op: 0x01 ver: 0x01

op: F xid: 0x0006.00c.00009c72 uba: 0x0080027b.0352.20

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 2 to: 1

REDO RECORD - Thread:1 RBA: 0x000094.0000000b.0044 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cfc SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:27 AFN:2 DBA:0x00800059 SCN:0x0000.0fa89cfb SEQ: 2 OP:5.4

ktucm redo: slt: 0x000c sqn: 0x00009c72 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x0080027b.0352.20 ext: 2 spc: 5382 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.0000000b.0098 LEN: 0x0188 VLD: 0x01

SCN: 0x0000.0fa89cfd SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cf9 SEQ: 1 OP:5.2

ktudh redo: slt: 0x000d sqn: 0x00009c89 flg: 0x0012 siz: 108 fbi: 0

uba: 0x00800559.0352.05 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:34 AFN:2 DBA:0x00800559 SCN:0x0000.0fa89cf8 SEQ: 2 OP:5.1

ktudb redo: siz: 108 spc: 7790 flg: 0x0012 seq: 0x0352 rec: 0x05

xid: 0x0009.00d.00009c89

ktubl redo: slt: 13 rci: 0 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x00800559.0352.02

prev ctl max cmt scn: 0x0000.0fa89894 prev tx cmt scn: 0x0000.0fa89905

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0003.01a.00009c9b uba: 0x0080046b.0345.42

flg: C--- lkc: 0 scn: 0x0000.0fa89cfb

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 2 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:1 DBA:0x00401f3a SCN:0x0000.0fa89cfc SEQ: 1 OP:11.4

KTB Redo

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op: 0x11 ver: 0x01

op: F xid: 0x0009.00d.00009c89 uba: 0x00800559.0352.05

Block cleanout record, scn: 0x0000.0fa89cfd ver: 0x01 opt: 0x02, entries follow...

itli: 1 flg: 2 scn: 0x0000.0fa89cfc

itli: 2 flg: 2 scn: 0x0000.0fa89cfb

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 2 to: 2

CHANGE #4 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.0000000c.0030 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89cfe SUBSCN: 1 04/14/2006 09:31:31

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:0x00800089 SCN:0x0000.0fa89cfd SEQ: 1 OP:5.4

ktucm redo: slt: 0x000d sqn: 0x00009c89 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x00800559.0352.05 ext: 2 spc: 7680 fbi: 0

REDO RECORD - Thread:1 RBA: 0x000094.0000000d.0010 LEN: 0x00d4 VLD: 0x01

SCN: 0x0000.0fa89cff SUBSCN: 1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89cfb SEQ: 1 OP:5.2

ktudh redo: slt: 0x0017 sqn: 0x00009c9c flg: 0x0011 siz: 52 fbi: 0

uba: 0x0080046b.0345.43 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:22 AFN:2 DBA:0x0080046b SCN:0x0000.0fa89cfa SEQ: 1 OP:5.1

ktudb redo: siz: 52 spc: 2602 flg: 0x0012 seq: 0x0345 rec: 0x43

xid: 0x0003.017.00009c9c

ktubl redo: slt: 23 rci: 0 opc: 5.7 objn: 0 objd: 0 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x0080046b.0345.42

prev ctl max cmt scn: 0x0000.0fa898e6 prev tx cmt scn: 0x0000.0fa89907

CHANGE #3 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA: 0x000094.0000000d.00e4 LEN: 0x0118 VLD: 0x01

SCN: 0x0000.0fa89cff SUBSCN: 1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89cff SEQ: 1 OP:5.2

ktudh redo: slt: 0x0017 sqn: 0x00000000 flg: 0x0002 siz: 84 fbi: 0

uba: 0x0080046b.0345.44 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:22 AFN:2 DBA:0x0080046b SCN:0x0000.0fa89cff SEQ: 1 OP:5.1

ktudb redo: siz: 84 spc: 2548 flg: 0x0022 seq: 0x0345 rec: 0x44

xid: 0x0003.017.00009c9c

ktubu redo: slt: 23 rci: 0 opc: 11.1 objn: 3643 objd: 3643 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0009.027.00009c88 uba: 0x00800559.0352.03

flg: C--- lkc: 0 scn: 0x0000.0fa89cf9

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 3 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:

1 DBA:0x00401f7a SCN:0x0000.0fa89cfc SEQ: 1 OP:11.4

KTB Redo

op: 0x01 ver: 0x01

op: F xid: 0x0003.017.00009c9c uba: 0x0080046b.0345.44

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f7a hdba: 0x00401f79

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 3 to: 2

REDO RECORD - Thread:1 RBA:

0x000094.0000000e.0010 LEN: 0x00dc VLD: 0x01

SCN: 0x0000.0fa89cff SUBSCN: 1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:22 AFN:

2 DBA:0x0080046b SCN:0x0000.0fa89cff SEQ: 2 OP:5.1

ktudb redo: siz: 84 spc: 2462 flg: 0x0022 seq: 0x0345 rec: 0x45

xid: 0x0003.017.00009c9c

ktubu redo: slt: 23 rci: 68 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Undo type: Last buffer split: No

Tablespace Undo: No

0x00000000

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid: 0x0006.00c.00009c72 uba: 0x0080027b.0352.20

flg: C--- lkc: 0 scn: 0x0000.0fa89cfc

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 3 to: 0

CHANGE #2 TYP:2 CLS: 1 AFN:

1 DBA:0x00401f3a SCN:0x0000.0fa89cfe SEQ: 1 OP:11.4

KTB Redo

op: 0x01 ver: 0x01

op: F xid: 0x0003.017.00009c9c uba: 0x0080046b.0345.45

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 1 ispac: 0 maxfr: 4863

tabn: 0 slot: 3 to: 1

REDO RECORD - Thread:1 RBA:

0x000094.0000000e.00ec LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89d00 SUBSCN: 1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:21 AFN:2 DBA:0x00800029 SCN:0x0000.0fa89cff SEQ: 2 OP:5.4

ktucm redo: slt: 0x0017 sqn: 0x00009c9c srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x0080046b.0345.45 ext: 2 spc: 2376 fbi: 0

REDO RECORD - Thread:1 RBA:

0x000094.0000000e.0140 LEN: 0x0188 VLD: 0x01

SCN: 0x0000.0fa89d01 SUBSCN: 1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:27 AFN:2 DBA:0x00800059 SCN:0x0000.0fa89cfc SEQ: 1 OP:5.2

ktudh redo: slt: 0x001f sqn: 0x00009c72 flg: 0x0012 siz: 108 fbi: 0

uba: 0x0080027b.0352.21 pxid: 0x0000.000.00000000

CHANGE #2 TYP:0 CLS:28 AFN:2 DBA:0x0080027b SCN:0x0000.0fa89cfb SEQ: 3 OP:5.1

ktudb redo: siz: 108 spc: 5382 flg: 0x0012 seq: 0x0352 rec: 0x21

xid: 0x0006.01f.00009c72

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ktubl redo: slt: 31 rci: 0 opc: 11.1 objn: 3635 objd: 3635 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba:

0x0080027b.0352.1e

prev ctl max cmt scn:

0x0000.0fa89902 prev tx cmt scn: 0x0000.0fa89908

KDO undo record:

KTB Redo

op: 0x04 ver: 0x01

op: L itl: xid:

0x0009.00d.00009c89 uba: 0x00800559.0352.05

flg: C--- lkc: 0 scn: 0x0000.0fa89cfe

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 3 to: 0

CHANGE #3 TYP:2 CLS: 1 AFN:

1 DBA:0x00401f3a SCN:0x0000.0fa89d00 SEQ: 1 OP:11.4

KTB Redo

op: 0x11 ver: 0x01

op: F xid: 0x0006.01f.00009c72 uba: 0x0080027b.0352.21

Block cleanout record, scn: 0x0000.0fa89d01 ver: 0x01 opt: 0x02, entries follow...

itli: 1 flg: 2 scn: 0x0000.0fa89d00

itli: 2 flg: 2 scn: 0x0000.0fa89cfe

KDO Op code: LKR row dependencies Disabled

xtype: XA bdba: 0x00401f3a hdba: 0x00401f39

itli: 2 ispac: 0 maxfr: 4863

tabn: 0 slot: 3 to: 2

CHANGE #4 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA:

0x000094.0000000f.00d8 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89d02 SUBSCN:

1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:27 AFN:

2 DBA:0x00800059 SCN:0x0000.0fa89d01 SEQ: 1 OP:5.4

ktucm redo: slt: 0x001f sqn:

0x00009c72 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba: 0x0080027b.0352.21 ext: 2 spc: 5272 fbi: 0

REDO RECORD - Thread:

1 RBA: 0x000094.0000000f.012c LEN: 0x00d4 VLD: 0x01

SCN: 0x0000.0fa89d02 SUBSCN:

1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:33 AFN:

2 DBA:0x00800089 SCN:0x0000.0fa89cfe SEQ: 1 OP:5.2

ktudh redo: slt: 0x0028 sqn:

0x00009c88 flg: 0x0011 siz: 52 fbi: 0

uba: 0x00800559.0352.06 pxid:

0x0000.000.00000000

CHANGE #2 TYP:0 CLS:34 AFN:

2 DBA:0x00800559 SCN:0x0000.0fa89cfd SEQ: 1 OP:5.1

ktudb redo: siz: 52 spc: 7680 flg: 0x0012 seq: 0x0352 rec: 0x06

xid: 0x0009.028.00009c88

ktubl redo: slt: 40 rci: 0 opc: 5.7 objn: 0 objd: 0 tsn: 0

Undo type: Regular undo Begin trans Last buffer split: No

Temp Object: No

Tablespace Undo: No

0x00000000 prev ctl uba: 0x00800559.0352.05

prev ctl max cmt scn: 0x0000.0fa89905 prev tx cmt scn: 0x0000.0fa8990a

CHANGE #3 MEDIA RECOVERY MARKER SCN:0x0000.00000000 SEQ: 0 OP:5.20

session number = 8

serial number = 1

transaction name =

REDO RECORD - Thread:1 RBA:

0x000094.00000010.0010 LEN: 0x0054 VLD: 0x01

SCN: 0x0000.0fa89d03 SUBSCN:

1 04/14/2006 09:31:37

CHANGE #1 TYP:0 CLS:33 AFN:2 DBA:

0x00800089 SCN:0x0000.0fa89d02 SEQ: 1 OP:5.4

ktucm redo: slt: 0x0028 sqn:

0x00009c88 srt: 0 sta: 9 flg: 0x2

ktucf redo: uba:

0x00800559.0352.06 ext: 2 spc: 7626 fbi: 0

END OF REDO DUMP

----- Redo read statistics for thread 1 -----

Read rate (ASYNC): 7Kb in 0.19s => 0.00 Mb/sec

Longest record: 0Kb, moves: 0/27 (0%)

Change moves: 6/63 (9%), moved: 0Mb

2008-5-16 10:10:00 顶部
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5.禁用日志生成的,并且切换日志

SQL> alter system set "_disable_logging"=true;

System altered.

SQL> alter system switch logfile;

System altered.

SQL> select * from v$log;

GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM

---------- ---------- ---------- ---------

1 1 148 104857600 1 NO ACTIVE 262708457 14-APR-06

2 1 149 104857600 1 NO CURRENT 262708606 14-APR-06

3 1 147 104857600 1 NO INACTIVE 262675537 14-APR-06

6.SCOTT用户再更新

SQL> show parameter disable

NAME TYPE VALUE

------------------------------------

_disable_logging boolean TRUE

SQL> update emp set sal=4000 where empno=7788;

1 row updated.

SQL> commit;

Commit complete.

7.转储日志

SQL> ALTER SYSTEM DUMP LOGFILE '

/opt/oracle9/oradata/testora9/redo02.log';

System altered.

8.记录此时REDO信息

DUMP OF REDO FROM FILE '/opt/oracle9/oradata/testora9/redo02.log'

Opcodes *.*

DBA's: (file # 0, block # 0) thru (file # 65534, block # 4194303)

RBA's: 0x000000.00000000.0000 thru 0xffffffff.ffffffff.ffff

SCN's scn: 0x0000.00000000 thru scn: 0xffff.ffffffff

Times: creation thru eternity

FILE HEADER:

Software vsn=153092096=0x9200000, Compatibility Vsn=153092096=0x9200000

Db ID=1628068176=0x610a5950, Db Name='TESTORA9'

Activation ID=1628067152=0x610a5550

Control Seq=1163=0x48b, File size=204800=0x32000

File Number=2, Blksiz=512, File Type=2 LOG

descrip:"Thread 0001, Seq# 0000000149, SCN 0x00000fa89d7e-0xffffffffffff"

thread: 1 nab: 0xffffffff seq: 0x00000095 hws: 0x1 eot: 1 dis: 0

reset logs count: 0x1f435110 scn: 0x0000.00000001

Low scn: 0x0000.0fa89d7e 04/14/2006 09:33:43

Next scn: 0xffff.ffffffff 01/01/1988 00:00:00

Enabled scn: 0x0000.00000001 04/26/2004 15:56:10

Thread closed scn: 0x0000.0fa89d7e 04/14/2006 09:33:43

Log format vsn: 0x8000000 Disk cksum: 0xcac7 Calc cksum: 0xcac7

Terminal Recovery Stamp scn: 0x0000.00000000 01/01/1988 00:00:00

Most recent redo scn: 0x0000.00000000

Largest LWN: 0 blocks

End-of-redo stream : No

Unprotected mode

Miscellaneous flags: 0x0

END OF REDO DUMP

至此已经没有REDO的生成.数据库目前仅仅记录少量的必要信息。

2008-5-16 10:10:13 顶部
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