oracle imp dmp命令

 vi par.txt

userid=system/oracle
tables=(user.table,...)
query="where org_no like 32%"
filesize=1000M
file=1.dmp,2.dmp,3.dmp
statistics=none
indexes=N
log=exp.log

vi exp.sh

exp parfile=par.txt　　

nohup ./exp.sh &

imp coast/coast@127.0.0.1：1521/sid
file=.
ewsmgnt.dmp 
tables=(T_NODES,T_SD_BGK4500_1,T_SD_BGK4500_2,T_SD_BGK6150_2C,T_SD_CABELL229,T_SD_POSITION,T_SD_RAINGAUGE)

 exp userid=zf/j@oracle9i tables=xsxkbn  file=xsxkb20110825_2.dmp    

 

 exp userid=zf/j@oracle9i tables=(table1,table2,table3) file=xsxkb20110825_2.dmp    

 例子：

　　

exp sgcis/password@jjgk files=/home/oracle/jjgk-ogg0717-1.dmp logs=/home/oracle/jjgk-ogg0717-1.log tables=PM_PRJECT_INFO,PM_SIN_PROJECT_INFO,PM_PROPLAN_FCB,PM_PRJECT_APPROVAL,PM_SIN_PHASE_INFO

exp sgcis/password@jjgk files=/home/oracle/jjgk-ogg0717-2.dmp logs=/home/oracle/jjgk-ogg0717-2.log tables=PM_NEXT_RISK_INFO,PM_SECU_RISK_INFO,PM_PRO_SAFE_MONTHREP,PM_PRO_SAFE_BASEINFO2,PM_PROGRESS_COLLECT_DEL

exp sgcis/password@jjgk files=/home/oracle/jjgk-ogg0717-3.dmp logs=/home/oracle/jjgk-ogg0717-3.log tables=PM_PROGRESS_COLLECT,PM_BID_PROJECT_INFO,IM_PART_ARMY_BASIINFO,PM_PART_UNITS,PM_IMPL_PLAN

exp sgcis/password@jjgk files=/home/oracle/jjgk-ogg0717-4.dmp logs=/home/oracle/jjgk-ogg0717-4.log tables=PM_PRJECT_STAGE,P_CODE,PM_PROGRESS_FILL_DET,PM_PLAN_ITEM_LIBRARY,ISC_SPECIALORG_UNIT,ISC_ORG_ATTRIBUTE

　　

详情见：

http://blog.csdn.net/xyz846/article/details/6437963　　

各种问题：

1.EXP-00091: EXP-00091: Exporting questionable statistics 

指定Linux系统的NLS_LANG环境变量为数据库的数据集
1）查询数据库的字符集（方法很多只用一种）
SQL> select userenv('language') from dual;
USERENV('LANGUAGE')
----------------------------------------------------
AMERICAN_AMERICA.ZHS16GBK

2）设置Linux操作系统的NLS_LANG环境变量
[oracle]$export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK
Window系统的环境变量的修改方法是：
C:>set NLS_LANG=AMERICAN_AMERICA.ZHS16GBK

[oracle@node2 ~]$ exp -help

Export: Release 11.2.0.1.0 - Production on Mon Mar 12 02:07:04 2018

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.



You can let Export prompt you for parameters by entering the EXP
command followed by your username/password:

     Example: EXP SCOTT/TIGER

Or, you can control how Export runs by entering the EXP command followed
by various arguments. To specify parameters, you use keywords:

     Format:  EXP KEYWORD=value or KEYWORD=(value1,value2,...,valueN)
     Example: EXP SCOTT/TIGER GRANTS=Y TABLES=(EMP,DEPT,MGR)
               or TABLES=(T1:P1,T1:P2), if T1 is partitioned table

USERID must be the first parameter on the command line.

Keyword    Description (Default)      Keyword      Description (Default)
--------------------------------------------------------------------------
USERID     username/password          FULL         export entire file (N)
BUFFER     size of data buffer        OWNER        list of owner usernames
FILE       output files (EXPDAT.DMP)  TABLES       list of table names
COMPRESS   import into one extent (Y) RECORDLENGTH length of IO record
GRANTS     export grants (Y)          INCTYPE      incremental export type
INDEXES    export indexes (Y)         RECORD       track incr. export (Y)
DIRECT     direct path (N)            TRIGGERS     export triggers (Y)
LOG        log file of screen output  STATISTICS   analyze objects (ESTIMATE)
ROWS       export data rows (Y)       PARFILE      parameter filename
CONSISTENT cross-table consistency(N) CONSTRAINTS  export constraints (Y)

OBJECT_CONSISTENT    transaction set to read only during object export (N)
FEEDBACK             display progress every x rows (0)
FILESIZE             maximum size of each dump file
FLASHBACK_SCN        SCN used to set session snapshot back to
FLASHBACK_TIME       time used to get the SCN closest to the specified time
QUERY                select clause used to export a subset of a table
RESUMABLE            suspend when a space related error is encountered(N)
RESUMABLE_NAME       text string used to identify resumable statement
RESUMABLE_TIMEOUT    wait time for RESUMABLE 
TTS_FULL_CHECK       perform full or partial dependency check for TTS
VOLSIZE              number of bytes to write to each tape volume
TABLESPACES          list of tablespaces to export
TRANSPORT_TABLESPACE export transportable tablespace metadata (N)
TEMPLATE             template name which invokes iAS mode export

Export terminated successfully without warnings.

　　

上回的情况是导数据、发现源端和目标端表结构不一致（目标端多了一个时间戳字段） 在源端建了一个临时表（和目标端的表结构一致） 然后使用
insert into PM_NEXT_RISK_INFO0719
(id, pk_id, updatetime)
select id, pk_id, '2017-07-20' from PM_NEXT_RISK_INFO

导出和导入某些表的表结构：

导出脚本：

exp 'userid="/ as sysdba"' file=ddl.dmp  rows=n tables=BIDPRO.ECP_QC_MATERIAL_2_CLASS,BIDPRO.BID_KV_STRUCT

　注意：EXP-00006: 出现内部不一致的错误 EXP-00000: 导出终止失败，原因是用户内含有分区表，删除分区表后再导出即可，如分区表需要，可以单独导出。

exp 'userid="/ as sysdba"' file=ddl.dmp indexes=n triggers=n constraints=n   rows=n tables=BIDPRO.bid_task_filedetail

　　

　INDEXES=no        --不导出索引

 TRIGGERS=no       --不导出触发器

 CONSTRAINTS=no    --不导出约束

导入脚本：

imp  'userid="/ as sysdba"' file=ddl.dmp  fromuser=BIDPRO touser=BIDPRO

　　

数据库迁移之pipe+imp/exp

https://blog.csdn.net/ruichaolin/article/details/6826019

相同表结构：
insert into PM_PROGRESS_FILL_DET select * from sgcis.PM_PROGRESS_FILL_DET0719;

字符集问题：

1.export done in ZHS16GBK character set and AL16UTF16 NCHAR character set

 import server uses AL32UTF8 character set (possible charset conversion)

解决办法：export NLS_LANG=AMERICAN_AMERICA.ZHS16GBK