现在有个需求,需要使用exp/imp导入11g的数据库数据到9i中,解决这个问题一般来说想到三种方法思路,一个个尝试(其实从高版本服务端支持低版本客户端的原则,可以大概的猜测出使用9i的客户端处理该问题)
方法1:导出导入都使用11g客户端

--11g客户端导出
[oracle@xifenfei ~]$ exp chf/xifenfei file=/tmp/t_xifenfei.dmp
>log=/tmp/t_xifenfei.log tables=chf.t_xifenfei
Export: Release 11.2.0.3.0 - Production on Fri May 18 18:15:18 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
server uses AL32UTF8 character set (possible charset conversion)
About to export specified tables via Conventional Path ...
. . exporting table                     T_XIFENFEI          2 rows exported
Export terminated successfully without warnings.
--11g客户端导入
[oracle@xifenfei ~]$ imp chf/xifenfei@ora9i file=/tmp/t_xifenfei_11g.dmp
>log=/tmp/t_xifenfei.log tables=chf.t_xifenfei
Import: Release 11.2.0.3.0 - Production on Fri May 18 18:17:24 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
IMP-00058: ORACLE error 6550 encountered
ORA-06550: line 1, column 33:
PLS-00302: component 'SET_NO_OUTLINES' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
IMP-00000: Import terminated unsuccessfully

这个错误是版本不兼容导致:PLS-00302: component ‘SET_NO_OUTLINES’ must be declared

方法2:11g客户端导出,9i客户端导入

--11g客户端导出
[oracle@xifenfei ~]$ exp chf/xifenfei file=/tmp/t_xifenfei.dmp
>log=/tmp/t_xifenfei.log tables=chf.t_xifenfei
Export: Release 11.2.0.3.0 - Production on Fri May 18 18:15:18 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
server uses AL32UTF8 character set (possible charset conversion)
About to export specified tables via Conventional Path ...
. . exporting table                     T_XIFENFEI          2 rows exported
Export terminated successfully without warnings.
--传输到9i
[oracle@xifenfei tmp]$ scp t_xifenfei.dmp 192.168.1.10:/tmp/
The authenticity of host '192.168.1.10 (192.168.1.10)' can't be established.
RSA key fingerprint is 3d:0c:d1:4b:45:bd:a3:f5:25:eb:4d:52:d2:32:03:69.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.10' (RSA) to the list of known hosts.
oracle@192.168.1.10's password:
t_xifenfei.dmp                          100%   56KB  56.0KB/s   00:00
--9i客户端导入
[oracle@xifenfei ~]$ imp chf/xifenfei file=/tmp/t_xifenfei.dmp tables=t_xifenfei
Import: Release 9.2.0.4.0 - Production on Thu May 24 23:32:18 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
IMP-00010: not a valid export file, header failed verification
IMP-00000: Import terminated unsuccessfully
--版本不兼容(高版本的dump文件低版本不能识别)

方法3:9i客户端导出,9i客户端导入

--9i客户端导出
[oracle@xifenfei ~]$ exp chf/xifenfei@ora11g file=/tmp/t_xifenfei_11g.dmp
>log=/tmp/t_xifenfei.log tables=chf.t_xifenfei
Export: Release 9.2.0.4.0 - Production on Thu May 24 23:37:20 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
server uses AL32UTF8 character set (possible charset conversion)
About to export specified tables via Conventional Path ...
. . exporting table                     T_XIFENFEI          2 rows exported
Export terminated successfully without warnings.
--9i客户端导入
[oracle@xifenfei log]$ imp chf/xifenfei file=/tmp/t_xifenfei_11g.dmp log=/tmp/xifenfei.log full=y
Import: Release 9.2.0.4.0 - Production on Fri May 25 03:22:14 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export file created by EXPORT:V09.02.00 via conventional path
import done in ZHS16GBK character set and AL16UTF16 NCHAR character setSegmentation fault
--导入数据遇到setSegmentation fault异常终止

解决setSegmentation fault异常终止

--修改exu9defpswitches视图
[oracle@xifenfei ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Fri May 18 22:29:00 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> CREATE OR REPLACE VIEW exu9defpswitches (
  2                  compflgs, nlslensem ) AS
  3          SELECT  a.value, b.value
  4          FROM    sys.v$parameter a, sys.v$parameter b
  5          WHERE   a.name = 'plsql_code_type' AND
  6                  b.name = 'nls_length_semantics' ;
View created.
--9i导出11g数据
[oracle@xifenfei tmp]$ exp chf/xifenfei@ora11g file=/tmp/t_xifenfei_11g.dmp
>log=/tmp/xifenfei.log tables=t_xifenfei
Export: Release 9.2.0.4.0 - Production on Fri May 25 04:08:32 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
server uses AL32UTF8 character set (possible charset conversion)
About to export specified tables via Conventional Path ...
. . exporting table                     T_XIFENFEI          2 rows exported
Export terminated successfully without warnings.
--9i导入数据
[oracle@xifenfei tmp]$ imp chf/xifenfei file=/tmp/t_xifenfei_11g.dmp
>log=/tmp/xifenfei.log tables=t_xifenfei
Import: Release 9.2.0.4.0 - Production on Fri May 25 04:08:53 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export file created by EXPORT:V09.02.00 via conventional path
import done in ZHS16GBK character set and AL16UTF16 NCHAR character set
. importing CHF's objects into CHF
. . importing table                   "T_XIFENFEI"          2 rows imported
Import terminated successfully without warnings.
--至此导入成功,完成了11gr2数据导入到9ir2中

通过一系列的实验证明,需要把11g的数据导入到9i中,需要使用9i的客户端进行,其中exu9defpswitches视图需要重建,否则会出现setSegmentation fault异常,导致导入失败.

exp导出数据报EXP-00056/ORA-01403错误

[oracle@xifenfei ~]$ exp chf/xifenfei file=/tmp/chf.dmp log=/tmp/chf.log owner=chf
Export: Release 9.2.0.4.0 - Production on Sun Apr 29 03:11:31 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
server uses WE8ISO8859P1 character set (possible charset conversion)
About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user CHF
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user CHF
About to export CHF's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
EXP-00056: ORACLE error 1403 encountered
ORA-01403: no data found
EXP-00000: Export terminated unsuccessfully

查看组件信息

SQL> select * from v$version;
BANNER
-------------------------------------------------------------------
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
PL/SQL Release 9.2.0.4.0 - Production
CORE    9.2.0.3.0       Production
TNS for Linux: Version 9.2.0.4.0 - Production
NLSRTL Version 9.2.0.4.0 - Production
SQL> col comp_id for a15
SQL> col status for a7
SQL> col version for a10
SQL> col comp_name for a30
SQL> set pagesize 1000
SQL> SELECT substr(comp_id,1,15) comp_id, status, substr(version,1,10) version,
  2     substr(comp_name,1,30) comp_name FROM dba_registry ORDER BY 1;
COMP_ID         STATUS  VERSION    COMP_NAME
--------------- ------- ---------- ------------------------------
AMD             VALID   9.2.0.4.0  OLAP Catalog
APS             LOADED  9.2.0.4.0  OLAP Analytic Workspace
CATALOG         VALID   9.2.0.4.0  Oracle9i Catalog Views
CATJAVA         VALID   9.2.0.4.0  Oracle9i Java Packages
CATPROC         VALID   9.2.0.4.0  Oracle9i Packages and Types
CONTEXT         VALID   9.2.0.4.0  Oracle Text
JAVAVM          VALID   9.2.0.4.0  JServer JAVA Virtual Machine
ODM             LOADED  9.2.0.1.0  Oracle Data Mining
ORDIM           VALID   9.2.0.4.0  Oracle interMedia
OWM             VALID   9.2.0.1.0  Oracle Workspace Manager
SDO             LOADED  9.2.0.4.0  Spatial
WK              VALID   9.2.0.4.0  Oracle Ultra Search
XDB             VALID   9.2.0.4.0  Oracle XML Database
XML             VALID   9.2.0.6.0  Oracle XDK for Java
XOQ             LOADED  9.2.0.4.0  Oracle OLAP API
15 rows selected.
SQL> SELECT status, object_id, object_type, owner||'.'||object_name
  2     "OWNER.OBJECT" FROM dba_objects WHERE owner='XDB' AND status != 'VALID'
  3     ORDER BY 4,2;
no rows selected

做1403跟踪

SQL> ALTER SYSTEM SET EVENTS '1403 trace name errorstack level 3';
[oracle@xifenfei ~]$ exp chf/xifenfei file=/tmp/chf.dmp log=/tmp/chf.log owner=chf
SQL> ALTER SYSTEM SET EVENTS '1403 trace name errorstack off';

trace文件关键内容

*** SESSION ID:(11.17) 2012-04-29 03:17:13.555
*** 2012-04-29 03:17:13.555
ksedmp: internal or fatal error
ORA-01403: no data found
Current SQL statement for this session:
SELECT xdb_uid FROM SYS.EXU9XDBUID

问题原因
因为控制文件重建或者使用历史控制文件恢复,忘记添加临时文件

SQL> select name from v$tempfile;
no rows selected

解决方法
添加临时文件

SQL> alter tablespace TEMP add tempfile
  2 '/u01/oracle/oradata/xifenfei/temp01.dbf' size 10M reuse;
Tablespace altered.
SQL> select name from v$tempfile;
NAME
------------------------------------------------
/u01/oracle/oradata/xifenfei/temp01.dbf

验证exp导出

[oracle@xifenfei udump]$ exp chf/xifenfei file=/tmp/chf.dmp log=/tmp/chf.log owner=chf
Export: Release 9.2.0.4.0 - Production on Sun Apr 29 05:20:21 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
server uses WE8ISO8859P1 character set (possible charset conversion)
About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user CHF
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user CHF
About to export CHF's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
. about to export CHF's tables via Conventional Path ...
. . exporting table ACC_OWE_TASK_LIST_HIS_07711202       4111 rows exported
. . exporting table                   CHF_XIFENFEI        868 rows exported
. . exporting table                     PLAN_TABLE          0 rows exported
. . exporting table                        T_XFF01          0 rows exported
. . exporting table                     T_XIFENFEI          1 rows exported
. exporting synonyms
. exporting views
. exporting stored procedures
. exporting operators
. exporting referential integrity constraints
. exporting triggers
. exporting indextypes
. exporting bitmap, functional and extensible indexes
. exporting posttables actions
. exporting materialized views
. exporting snapshot logs
. exporting job queues
. exporting refresh groups and children
. exporting dimensions
. exporting post-schema procedural objects and actions
. exporting statistics
Export terminated successfully no warnings.

发现问题
impdp导入数据库不成功,一直在报ORA-00904: “ORIGINAL_OBJECT_NAME”: invalid identifier错误

[oracle@back1 backup]$ impdp username/password  schemas=center_admin dumpfile=center_admin20120427.dmp
> logfile=center_admin20120427.log directory=impdir parallel=10 job_name=center_admin08;
Import: Release 11.1.0.6.0 - 64bit Production on Friday, 27 April, 2012 21:35:06
Copyright (c) 2003, 2007, Oracle.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORA-39002: invalid operation
ORA-31694: master table "USERNAME"."CENTER_ADMIN08" failed to load/unload
ORA-02354: error in exporting/importing data
ORA-02373: Error parsing insert statement for table "USERNAME"."CENTER_ADMIN08".
ORA-00904: "ORIGINAL_OBJECT_NAME": invalid identifier

分析问题
看到这个错误,我第一个感觉根据ORA-31694,怀疑是没有创建相关用户,或者是该用户无权限权限CENTER_ADMIN08表.等我登陆目标数据库查看时候发现该用户存在,并且已经授予了DBA权限,所以不存在是用户相关问题导致.ORA-02354错误我怀疑是expdp导出来的文件在传输过程中发生意外(如使用ftp传输未使用二进制模式),当我使用md5sum命令检查发现两边一致,证明该文件传输正常.目标端不能检查明显故障,怀疑导出文件本身存在问题检查导出文件日志

[oracle@fcdb2 backup]$ more center_admin20120427.log
;;;
Export: Release 11.1.0.7.0 - 64bit Production on Friday, 27 April, 2012 17:32:30
Copyright (c) 2003, 2007, Oracle.  All rights reserved.
;;;
Connected to: Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
Starting "USERNAME"."CENTER_ADMIN08":USERNAME/**** schemas=center_admin directory=expdir dumpfile=center_admin20120427.dmp
er_admin20120427.log parallel=10 job_name=center_admin08
Estimate in progress using BLOCKS method...
Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 158.2 GB

发现新大陆,两边的数据库版本不一致,源端版本是11.1.0.7,目标端版本是11.1.0.6.这个时候我对问题的定位是可能版本兼用问题(毕竟是高版本到低版本)或者是bug.先查询datapump版本之间兼容性列表

     Version      Written by     Can be imported into Target:
   Data Pump   database with      10gR1      10gR2      11gR1      11gR2
Dumpfile Set   compatibility   10.1.0.x   10.2.0.x   11.1.0.x   11.2.0.x
------------ --------------- ---------- ---------- ---------- ----------
         0.1          10.1.x  supported  supported  supported  supported
         1.1          10.2.x         no  supported  supported  supported
         2.1          11.1.x         no         no  supported  supported
         3.1          11.2.x         no         no         no  supported

这里可以看出11.1.0.7和11.1.0.6之间是相互兼容的,不应该会存在上述问题,那么现在对于该问题的解释很可能是bug导致,继续查询资料发现[ID 752374.1]描述的正是该问题.

解决问题

1. Apply 11.1.0.7 Patch:6890831 on the target database.
2. Workaround this issue by re-running an expdp from the 11.1.0.7 database with an additional
parameter VERSION=10.2. This will create a new dump file compatible to be imported into 10gR2,
which will also import successfully into 11.1.0.6.
Unfortunately, please be aware that the new 11g specific features will not be
exported if expdp is run from 11.1.0.7 with the parameter VERSION=10.2.
If only normal objects and features are involved, this could be a good workaround.

因为数据库内部错误,数据字典不一致等原因导致 DataPump不能被正常使用,这个时候可以尝试着通过重建 DataPump来解决问题
sysdba登录数据库

SQL> connect / as sysdba

For Oracle version 10.1

1. Catdp.sql orders the installation of all its components including
   the Metadata API which was previously installed separately.
   By default catproc.sql invoke this script.
SQL >@ $ORACLE_HOME/rdbms/admin/catdp.sql
2. dbmspump.sql will create DBMS procedures for dataPUMP
SQL >@ $ORACLE_HOME/rdbms/admin/dbmspump.sql

For Oracle version 10.2

1. Catdph.sql will Re-Install DataPump types and views
SQL >@ $ORACLE_HOME/rdbms/admin/catdph.sql
Use this code to verify if XDB is installed:
SQL> select substr(comp_name,1,30) comp_name, substr(comp_id,1,10)
     comp_id,substr(version,1,12) version,status
     from dba_registry where comp_id='XDB';
Sample output if XDB installed,
Oracle XML Database            XDB        -version-   VALID
Note: If XDB is installed, then it is required to run "catmetx.sql" script also.
SQL> @ $ORACLE_HOME/rdbms/admin/catmetx.sql
2. prvtdtde.plb will Re-Install tde_library packages
SQL >@ $ORACLE_HOME/rdbms/admin/prvtdtde.plb
3. Catdpb.sql will Re-Install DataPump packages
SQL >@ $ORACLE_HOME/rdbms/admin/catdpb.sql
4.Dbmspump.sql will Re-Install DBMS DataPump objects
SQL >@ $ORACLE_HOME/rdbms/admin/dbmspump.sql
5. To recompile  invalid objects, if any
SQL >@ $ORACLE_HOME/rdbms/admin/utlrp.sql

For Oracle version 11g

1. Catproc.sql
SQL >@ $ORACLE_HOME/rdbms/admin/catproc.sql
2. To recompile invalid objects, if any
SQL >@ $ORACLE_HOME/rdbms/admin/utlrp.sql

参考:How To Reload Datapump Utility EXPDP/IMPDP [ID 430221.1]

今天有朋友在说PARALLEL设置为n(大于1)，DUMPFILE为一个文件(不包含%U),会出现什么样的情况。下面通过实验来说明这个问题
1.当并发数比较大时(这里实验使用4),expdp会报ORA-39095错误

[oracle@node1 tmp]$ expdp chf/xifenfei DUMPFILE=xifenfei.dmp TABLES=t1 PARALLEL=4
Export: Release 11.2.0.3.0 - Production on Wed Mar 7 20:48:52 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
Starting "CHF"."SYS_EXPORT_TABLE_01":  chf/******** DUMPFILE=xifenfei.dmp TABLES=t1 PARALLEL=4
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 5.362 GB
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
ORA-39095: Dump file space has been exhausted: Unable to allocate 8192 bytes

2.并发数较少时(实验为2),通过attach观察
2.1)执行expdp导出

[oracle@node1 tmp]$ expdp chf/xifenfei DUMPFILE=xifenfei.dmp TABLES=t1 PARALLEL=2
Export: Release 11.2.0.3.0 - Production on Wed Mar 7 20:49:15 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
Starting "CHF"."SYS_EXPORT_TABLE_02":  chf/******** DUMPFILE=xifenfei.dmp TABLES=t1 PARALLEL=2
Estimate in progress using BLOCKS method...
Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
Total estimation using BLOCKS method: 5.362 GB
Processing object type TABLE_EXPORT/TABLE/TABLE
Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
. . exported "CHF"."T1"                                  4.647 GB 51080958 rows
Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
Master table "CHF"."SYS_EXPORT_TABLE_02" successfully loaded/unloaded
******************************************************************************
Dump file set for CHF.SYS_EXPORT_TABLE_02 is:
  /opt/oracle/diag/rdbms/chf/chf/trace/xifenfei.dmp
Job "CHF"."SYS_EXPORT_TABLE_02" successfully completed at 20:52:23

2.2)在导出过程中，使用attach观察expdp工作情况

[oracle@node1 trace]$ expdp chf/xifenfei attach=SYS_EXPORT_TABLE_02
Export: Release 11.2.0.3.0 - Production on Wed Mar 7 20:49:38 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
Job: SYS_EXPORT_TABLE_02
  Owner: CHF
  Operation: EXPORT
  Creator Privs: TRUE
  GUID: BAA7964815021C96E0438C09A8C04319
  Start Time: Wednesday, 07 March, 2012 20:49:16
  Mode: TABLE
  Instance: chf
  Max Parallelism: 2
  EXPORT Job Parameters:
  Parameter Name      Parameter Value:
     CLIENT_COMMAND        chf/******** DUMPFILE=xifenfei.dmp TABLES=t1 PARALLEL=2
  State: EXECUTING
  Bytes Processed: 0
  Current Parallelism: 2
  Job Error Count: 0
  Dump File: /opt/oracle/diag/rdbms/chf/chf/trace/xifenfei.dmp
    bytes written: 4,096
Worker 1 Status:
  Process Name: DW00
  State: EXECUTING
  Object Schema: CHF
  Object Name: T1
  Object Type: TABLE_EXPORT/TABLE/TABLE
  Completed Objects: 1
  Total Objects: 1
  Worker Parallelism: 1
Worker 2 Status:
  Process Name: DW02
  State: EXECUTING
  Object Schema: CHF
  Object Name: T1
  Object Type: TABLE_EXPORT/TABLE/TABLE_DATA
  Completed Objects: 1
  Total Objects: 1
  Completed Rows: 16,104,279
  Worker Parallelism: 1
Export> status
Job: SYS_EXPORT_TABLE_02
  Operation: EXPORT
  Mode: TABLE
  State: EXECUTING
  Bytes Processed: 0
  Current Parallelism: 2
  Job Error Count: 0
  Dump File: /opt/oracle/diag/rdbms/chf/chf/trace/xifenfei.dmp
    bytes written: 4,096
Worker 1 Status:
  Process Name: DW00
  State: EXECUTING
  Object Schema: CHF
  Object Name: T1
  Object Type: TABLE_EXPORT/TABLE/TABLE
  Completed Objects: 1
  Total Objects: 1
  Worker Parallelism: 1
Worker 2 Status:
  Process Name: DW02
  State: EXECUTING
  Object Schema: CHF
  Object Name: T1
  Object Type: TABLE_EXPORT/TABLE/TABLE_DATA
  Completed Objects: 1
  Total Objects: 1
  Completed Rows: 35,425,534
  Worker Parallelism: 1
Export> status
Job: SYS_EXPORT_TABLE_02
  Operation: EXPORT
  Mode: TABLE
  State: COMPLETING
  Bytes Processed: 4,989,989,105
  Percent Done: 100
  Current Parallelism: 2
  Job Error Count: 0
  Dump File: /opt/oracle/diag/rdbms/chf/chf/trace/xifenfei.dmp
    bytes written: 4,990,009,344
Worker 1 Status:
  Process Name: DW00
  State: WORK WAITING
Worker 2 Status:
  Process Name: DW02
  State: WORK WAITING

3.最终结论
3.1)如果并发设置过大，在导出过程中直接报错
3.2)如果导出文件数量少于并发数时，多于并发将不会工作。

1.exp导出数据

[oracle@node1 ~]$ exp "'/ as sysdba'" owner=ECPUUM file=/tmp/ECPUUM.dmp log=/tmp/E.log
Export: Release 10.2.0.5.0 - Production on Wed Jan 18 16:32:34 2012
Copyright (c) 1982, 2007, Oracle.  All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0-64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user ECPUUM
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user ECPUUM
About to export ECPUUM's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
. about to export ECPUUM's tables via Conventional Path ...
. . exporting table         TAB_UUM_COMPANY_DETAIL        263 rows exported
. exporting synonyms
. exporting views
. exporting stored procedures
. exporting operators
. exporting referential integrity constraints
. exporting triggers
. exporting indextypes
. exporting bitmap, functional and extensible indexes
. exporting posttables actions
. exporting materialized views
. exporting snapshot logs
. exporting job queues
. exporting refresh groups and children
. exporting dimensions
. exporting post-schema procedural objects and actions
. exporting statistics
Export terminated successfully without warnings.

2.创建新用户

[oracle@node1 ~]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Wed Jan 18 16:39:17 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0-64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
SQL> drop user xifenfei cascade;
User dropped.
SQL> create user xifenfei identified by xff;
User created.
SQL> grant dba to xifenfei;
Grant succeeded.
SQL> exit

3.imp+show=y导入

[oracle@node1 ~]$ imp "'/ as sysdba'" fromuser=ECPUUM touser=xifenfei \
>file=/tmp/ECPUUM.dmp log=/tmp/ECPUUM.log show=y
Import: Release 11.2.0.3.0 - Production on Wed Jan 18 16:41:52 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates.  All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0-64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing option
Export file created by EXPORT:V10.02.01 via conventional path
import done in ZHS16GBK character set and AL16UTF16 NCHAR character set
. importing ECPUUM's objects into XIFENFEI
 "BEGIN  "
 "sys.dbms_logrep_imp.instantiate_schema(schema_name=>SYS_CONTEXT('USERENV','"
 "CURRENT_SCHEMA'), export_db_name=>'ECP', inst_scn=>'20152169');"
 "COMMIT; END;"
 "ALTER SESSION SET CURRENT_SCHEMA= "XIFENFEI""
 "CREATE SEQUENCE "SEQ_UUM_COMPANY_ID" MINVALUE 1 MAXVALUE 999999999999999999"
 "9999999 INCREMENT BY 1 START WITH 462 CACHE 20 NOORDER NOCYCLE"
 "CREATE GLOBAL TEMPORARY TABLE "HT_TAB_UUM_USERS" ("USER_ID" NUMBER(19, 0) N"
 "OT NULL ENABLE) ON COMMIT DELETE ROWS "
 "CREATE TABLE "TAB_UUM_COMPANY_DETAIL" ("COMPANY_ID" NUMBER(7, 0) NOT NULL E"
 "NABLE, "COMPANY_NAMEALIAS" VARCHAR2(64) NOT NULL ENABLE, "COMPANY_TYPE" NUM"
 "BER, "COMPANY_COUNTRY" NUMBER, "COMPANY_PROVICE" NUMBER, "COMPANY_CITY" NUM"
 "BER, "COMPANY_AREA" NUMBER, "COMPANY_ADDRESS" VARCHAR2(256), "COMPANY_POSTC"
 "ODE" NUMBER(6, 0), "COMPANY_PHONE" VARCHAR2(13), "COMPANY_WEBSITE" VARCHAR2"
 "(128), "COMPANY_TRADEBIG" NUMBER, "COMPANY_SIZE" NUMBER, "COMPANY_PAYMENT" "
 "NUMBER, "COMPANY_EXTEND1" VARCHAR2(32), "COMPANY_EXTEND2" VARCHAR2(32), "CO"
 "MPANY_EXTEND3" VARCHAR2(32), "COMPANY_TRADESMALL" NUMBER, "COMPANY_REG_CAPI"
 "TAL" NUMBER)  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 STORAGE(INITIAL"
 " 65536 NEXT 1048576 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT) TABL"
 "ESPACE "TS_PUB_BASE" LOGGING NOCOMPRESS"
. . skipping table "TAB_UUM_COMPANY_DETAIL"
 "CREATE UNIQUE INDEX "PK_TAB_UUM_COMPANY_DETAIL" ON "TAB_UUM_COMPANY_DETAIL""
 " ("COMPANY_ID" )  PCTFREE 10 INITRANS 2 MAXTRANS 255 STORAGE(INITIAL 65536 "
 "NEXT 1048576 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT) TABLESPACE "
 ""TS_PUB_BASE" LOGGING"
 "ALTER SESSION SET CURRENT_SCHEMA= "XIFENFEI""
 "ALTER TABLE "TAB_UUM_COMPANY_DETAIL" ADD SUPPLEMENTAL LOG GROUP "GGS_TAB_UU"
 "M_COMPANY_51784" ("COMPANY_ID") ALWAYS"
 "ALTER TABLE "TAB_UUM_COMPANY_DETAIL" ADD SUPPLEMENTAL LOG GROUP "GGS_TAB_UU"
 "M_COMPANY_52725" ("COMPANY_ID") ALWAYS"
 "ALTER TABLE "TAB_UUM_COMPANY_DETAIL" ADD SUPPLEMENTAL LOG GROUP "GGS_TAB_UU"
 "M_COMPANY_52946" ("COMPANY_ID") ALWAYS"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_ID" IS  '企业ID'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_NAMEALIAS" IS  '公司名称"
 "简称'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_TYPE" IS  '公司类型:单选"
 "，选择：1 有限责任公司、2 股份有限公司、3 国有独资公司、4个人独资企业、5个体"
 "工商户、6合伙企业、7外商投资企业、8私营企业、9其他；'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_COUNTRY" IS  '公司所在地"
 ":从列表选择，分四项：国家、省份、地市、区县，其中国家一项默认值为：中国；'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_PROVICE" IS  '省'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_CITY" IS  '市'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_AREA" IS  '地区'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_ADDRESS" IS  '公司详细地"
 "址: 手工录入，100个汉字；'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_POSTCODE" IS  '邮编'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_PHONE" IS  '公司电话'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_WEBSITE" IS  '公司网址'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_SIZE" IS  '公司规模'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_PAYMENT" IS  '付款方式'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_EXTEND1" IS  '扩展字段1"
 "'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_EXTEND2" IS  '扩展字段1"
 "'"
 "COMMENT ON COLUMN "TAB_UUM_COMPANY_DETAIL"."COMPANY_EXTEND3" IS  '扩展字段3"
 "'"
. . skipping table "TAB_UUM_COMPANY_DETAIL"
Import terminated successfully without warnings.

4.查询imp结果

[oracle@node1 ~]$ sqlplus xifenfei/xff
SQL*Plus: Release 11.2.0.3.0 Production on Wed Jan 18 16:45:10 2012
Copyright (c) 1982, 2011, Oracle.  All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Oracle Label Security, OLAP, Data Mining,
Oracle Database Vault and Real Application Testing options
SQL> select count(*) from TAB_UUM_COMPANY;
select count(*) from TAB_UUM_COMPANY
                     *
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> select * from tab;
no rows selected

通过实验知道，show=y表示展示imp导入的时候，会执行的相关语句(不包括insert语句)，而不会真正的在数据库中执行

一.出现EXP-00091错误

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT \
> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log
Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:02:37 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)
About to export specified tables via Conventional Path ...
Current user changed to TESTXUCHAO
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
Export terminated successfully with warnings.

当环境变量和数据库的不一致，在导出统计信息时候，会报EXP-00091错误。

二.查看NLS相关参数

[oracle@localhost tmp]$ echo $NLS_LANG
AMERICAN
SQL>  col value for a30
SQL>  select parameter,value from nls_database_parameters
   2  where parameter like '%CHARACTERSET%';
PARAMETER                      VALUE
------------------------------ ------------------------------
NLS_CHARACTERSET               ZHS16GBK
NLS_NCHAR_CHARACTERSET         AL16UTF16

三.解决方法
1.设置NLS_LANG为NLS_CHARACTERSET

[oracle@localhost tmp]export NLS_LANG=american_america.ZHS16GBK
[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT \
> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log
Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:08:10 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in ZHS16GBK character set and AL16UTF16 NCHAR character set
About to export specified tables via Conventional Path ...
Current user changed to TESTXUCHAO
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
Export terminated successfully without warnings.

2.使用statistics=none

[oracle@localhost tmp]$ exp "'/ as sysdba'" tables=testxuchao.TAB_XN_PY_DICT \
> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log  statistics=none
Export: Release 9.2.0.4.0 - Production on Mon Jan 16 16:08:53 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)
About to export specified tables via Conventional Path ...
Current user changed to TESTXUCHAO
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
Export terminated successfully without warnings.

今天接到测试报告，他的客户端不能导出数据库
1.报错如下

Export started on 2012-1-16 15:30:05
D:\oracle\product\10.2.0\client_3\BIN\exp.exe parfile=C:\WINDOWS\Tmp\plsexp.par
EXP-00056: 遇到 ORACLE 错误 6550
ORA-06550: line 1, column 41:
PLS-00302: component 'SET_NO_OUTLINES' must be declared
ORA-06550: line 1, column 15:
PL/SQL: Statement ignored
EXP-00000: 导出终止失败
Export finished on 2012-1-16 15:30:07

2.服务器上导出

[oracle@localhost tmp]$ exp "'/ as sysdba'" owner=testxuchao \
> file=/tmp/xifenfei.dmp log=/tmp/xifenfei.log
Export: Release 9.2.0.4.0 - Production on Mon Jan 16 15:36:38 2012
Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.
Connected to: Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses ZHS16GBK character set (possible charset conversion)
About to export specified users ...
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user TESTXUCHAO
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user TESTXUCHAO
About to export TESTXUCHAO's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
. about to export TESTXUCHAO's tables via Conventional Path ...
. . exporting table                    COMPANY_CON          0 rows exported
. . exporting table       SMP_VDD_OPERATIONS_TABLE          0 rows exported
. . exporting table        TAB_XN_NXT_CONSULTATION          0 rows exported
EXP-00091: Exporting questionable statistics.
……………………
EXP-00091: Exporting questionable statistics.
. . exporting table                      TAB_XN_PY          0 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. . exporting table                 TAB_XN_PY_DICT      25433 rows exported
EXP-00091: Exporting questionable statistics.
EXP-00091: Exporting questionable statistics.
. exporting synonyms
. exporting views
. exporting stored procedures
. exporting operators
. exporting referential integrity constraints
. exporting triggers
. exporting indextypes
. exporting bitmap, functional and extensible indexes
. exporting posttables actions
. exporting materialized views
. exporting snapshot logs
. exporting job queues
. exporting refresh groups and children
. exporting dimensions
. exporting post-schema procedural objects and actions
. exporting statistics
Export terminated successfully with warnings.

服务器上执行exp成功了，我很自然的说了句，是客户端的问题，然后和测试说，可以端重新装下再试试看(因为他装了两个客户端，我是怀疑变量等原因导致)。当他装好后，然后和我说，还是不行，我开始怀疑是版本的问题，然后对比了下今天他的报错，和数据库版本，发现果真是两边版本的问题(数据库服务器版本:9.2.0.4，客户端版本:10.2.0.1)，解决问题，让他装一个低版本的客户端，再装个高版本的客户端，然后在根据导出数据的版本，选择不同版本的exp。

3.失误总结
自己的自以为是让他忙碌了几个小时，深表歉意。人家把你当做专家，你就应该对人家负责任。用认真的心态去帮别人解决问题，不要以为自己就要离开，用种不负责任的态度去处理事情，更不要以为这些东西，自己已经很懂了，不认真对待。