dul恢复truncate表测试

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标题：dul恢复truncate表测试

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dul 恢复truncate 测试
准备dul测试

SQL> selectcount(*) fromt_xifenfei;

COUNT(*)

----------

67854

SQL> desct_xifenfei

NameNull? Type

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

OWNER VARCHAR2(30)

OBJECT_NAME VARCHAR2(128)

SUBOBJECT_NAME VARCHAR2(30)

OBJECT_ID NUMBER

DATA_OBJECT_ID NUMBER

OBJECT_TYPE VARCHAR2(19)

CREATEDDATE

LAST_DDL_TIMEDATE

TIMESTAMPVARCHAR2(19)

STATUS VARCHAR2(7)

TEMPORARYVARCHAR2(1)

GENERATED VARCHAR2(1)

SECONDARY VARCHAR2(1)

NAMESPACE NUMBER

EDITION_NAME VARCHAR2(30)

SQL> selectobject_id,data_object_id fromuser_objects whereobject_name='T_XIFENFEI';

OBJECT_ID DATA_OBJECT_ID

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

68332 68332

SQL> TRUNCATETABLE T_XIFENFEI;

Table truncated.

SQL> ALTERSYSTEM CHECKPOINT;

System altered.

SQL> selectobject_id,data_object_id fromuser_objects whereobject_name='T_XIFE

NFEI';

OBJECT_ID DATA_OBJECT_ID

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

68332 68468

SQL> SELECTTABLESPACE_NAME FROMDBA_SEGMENTS WHERESEGMENT_NAME='T_XIFENFEI';

TABLESPACE_NAME

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

USERS

SQL> SELECTFILE_ID FROM DBA_DATA_FILES WHERE TABLESPACE_NAME='USERS';

FILE_ID

----------

4

SQL> SELECTfile#,RFILE#,NAMEFROM V$DATAFILE;

FILE# RFILE#NAME

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

1 1 E:\ORACLE\ORADATA\XIFENFEI\SYSTEM01.DBF

2 2 E:\ORACLE\ORADATA\XIFENFEI\SYSAUX01.DBF

3 3 E:\ORACLE\ORADATA\XIFENFEI\UNDOTBS01.DBF

4 4 E:\ORACLE\ORADATA\XIFENFEI\USERS01.DBF

5 5 E:\ORACLE\ORADATA\XIFENFEI\UNDO01.DBF

6 6 E:\ORACLE\ORADATA\XIFENFEI\CZUM01.DBF

6 rowsselected.

备注说明：因为我们为了测试，所以直接查询出来了data_object_id，在实际的恢复中，我们需要使用logminer来找出来历史dataobj#

dul恢复truncate 表

e:\dul10>dul.exe

Data UnLoader 10.2.4.37 - Oracle Internal Only - on Mon Feb 04 00:20:08 2013

with 64-bit io functions

Copyright (c) 1994 2010 Bernard van Duijnen All rights reserved.

Strictly Oracle Internal use Only

DUL: Warning: Recreatingfile "dul.log"

Reading USER.dat 65 entries loaded

Reading OBJ.dat 67944 entries loaded and sorted 67944 entries

Reading SCANNEDLOBPAGE.dat 8 entries loaded and sorted 8 entries

Reading TAB.dat 1869 entries loaded

Reading COL.dat 77409 entries loaded and sorted 77409 entries

Reading SEG.dat 23 entries loaded

Reading EXT.dat 54 entries loaded and sorted 54 entries

Reading TABPART.dat 110 entries loaded and sorted 110 entries

Reading TABCOMPART.dat 1 entries loaded and sorted 1 entries

Reading TABSUBPART.dat 32 entries loaded and sorted 32 entries

Reading INDPART.dat 127 entries loaded and sorted 127 entries

Reading INDCOMPART.dat 0 entries loaded and sorted 0 entries

Reading INDSUBPART.dat 0 entries loaded and sorted 0 entries

Reading IND.dat 3729 entries loaded

Reading LOB.dat

DUL: Warning: Increased the size of DC_LOBS from 1024 to 8192 entries

1109 entries loaded

Reading ICOL.dat 4868 entries loaded

Reading COLTYPE.dat 2823 entries loaded

Reading TYPE.dat 2082 entries loaded

Reading ATTRIBUTE.dat 8736 entries loaded

Reading COLLECTION.dat 591 entries loaded

Reading COMPATSEG.dat 0 entries loaded

Reading BOOTSTRAP.dat 60 entries loaded

Reading LOBFRAG.dat 1 entries loaded and sorted 1 entries

Reading LOBCOMPPART.dat 0 entries loaded and sorted 0 entries

Reading UNDO.dat 24 entries loaded

Reading TS.dat 7 entries loaded

Reading PROPS.dat 36 entries loaded

Database characterset is ZHS16GBK

Database national characterset is AL16UTF16

Found db_id = 1422012639

Found db_name = XIFENFEI

DUL> SCAN DATAFILE 4;

DUL: Warning: Recreatingfile "EXT.dat"

DUL: Warning: Recreatingfile "SEG.dat"

DUL: Warning: Recreatingfile "COMPATSEG.dat"

DUL: Warning: Recreatingfile "SCANNEDLOBPAGE.dat"

Scanning tablespace 4, datafile 4 ...

23 segment header and 1601 data blocks

tablespace 4, datafile 4: 2079 blocks scanned

Reading EXT.dat 54 entries loaded and sorted 54 entries

Reading SEG.dat 23 entries loaded

Reading COMPATSEG.dat 0 entries loaded

Reading SCANNEDLOBPAGE.dat 8 entries loaded and sorted 8 entries

DUL> ALTER SESSION SET USE_SCANNED_EXTENT_MAP = TRUE;

Parameter altered

DUL> scan extents;

DUL: Warning: Recreatingfile "seen_tab.dat"

DUL: Warning: Recreatingfile "seen_col.dat"

Scanning extents without segment header

Scanning extent id (dba 0, obj 68332)

Analyzing segment: data objectid 68332

heap organized table

Col Seen Max PCT PRINT NUMBERS DATES TIMESTAMP WITH TZ INTRVAL ROWIDS LOB

no count Size NUL 75%100% AnyNice AnyNice AnyNice AnyNice Y2M D2S AnyNice

1 67854 18 0 100 100 0 0 0 0 0 0 0 0 0 0 44 0 0

…………

14 67854 2 0 0 0 100 100 0 0 0 0 0 0 0 0 0 0 0

|SYS| |C_FILE#_BLOCK#| || |8| |8| |CLUSTER| |20-JAN-2013 AD 17:13:18| |20-JAN-20

…………

:18| |2013-01-20:17:13:18| |VALID| |N| |N| |N| |1|

UNLOAD TABLE OBJNO68332 ( COL001 VARCHAR2(18), COL002 VARCHAR2(30), COL003 VARCH

AR2(27)

, COL004 NUMBER, COL005 NUMBER, COL006 VARCHAR2(18), COL007 DATE

, COL008 DATE, COL009 VARCHAR2(19), COL010 VARCHAR2(7), COL011 VARCHAR2(

1)

, COL012 VARCHAR2(1), COL013 VARCHAR2(1), COL014 NUMBER )

STORAGE( DATAOBJNO 68332 );

--自己拼接语句

DUL> UNLOAD TABLE t_xifenfei_1(OWNER VARCHAR2(30),OBJECT_NAME VARCHAR2(128),SUB

OBJECT_NAME VARCHAR2(30),OBJECT_ID NUMBER,DATA_OBJECT_ID NUMBER,OBJECT_TY

PE VARCHAR2(19),CREATED DATE,LAST_DDL_TIME DATE,TIMESTAMP VARCHAR2(19),ST

ATUS VARCHAR2(7),TEMPORARY VARCHAR2(1),GENERATED VARCHAR2(1),SECONDARY

VARCHAR2(1),NAMESPACE NUMBER,EDITION_NAME VARCHAR2(30)) STORAGE( DATAOBJNO 6

8332 );

. unloading table T_XIFENFEI_1

DUL: Warning: Recreatingfile "T_XIFENFEI_1.ctl"

67854 rows unloaded

补充说明：
1.在最新的dul 10.2.0.5.20中，不支持scan extents命令
2.在最新的dul 10.2.0.5.20中，挖出来的无数据字典数据，字符串转换为16进制值