.sql

set line 1000         --设置行的长度

set pagesize 0        --输出不换页

set feedback off      --默认的当一条sql发出的时候，oracle会给一个反馈，比如说创建表的时候，如果成功命令行会返回类似：Table created的反馈,off后不显示反馈

set heading off       --不显示表头信息

set trimspool on      --如果trimspool设置为on，将移除spool文件中的尾部空

set trims on          --去掉空字符

set echo off;　　　　   --显示start启动的脚本中的每个sql命令，缺省为on

set colsep '|'         --设置分隔符

set termout off        --不在屏幕上显示结果

spool db1.txt          --记录数据到db1.txt

select object_id,object_name from all_objects;  --导出数据语句

spool off              --收集完毕

exit

一切就绪后导出数据

[oracle@centos5 ~]$ sqlplus test/test @exp_table.sql

SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jun 13 16:35:14 2013

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.

Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

[oracle@centos5 ~]$ sed -i 's/ //g' db1.txt  --可选，去除每行开头部分的空格

[oracle@centos5 ~]$ more db1.txt 20|ICOL$

44|I_USER1

28|CON$

15|UNDO$

29|C_COBJ#

3|I_OBJ#

25|PROXY_ROLE_DATA$

[oracle@centos5 ~]$ cat db1.txt |wc -l

[oracle@centos5 ~]$ sqlplus test/test

SQL*Plus: Release 10.2.0.4.0 - Production on Thu Jun 13 16:36:21 2013

Copyright (c) 1982, 2007, Oracle.  All Rights Reserved.

Connected to:

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select count(*) from all_objects;

COUNT(*)

----------

--数据正确

二、从txt导入数据到oracle

sqlldr是通过一个control文件设定后，从文本导入数据

建立一张测试表

SQL> create table tb_sqlldr (id number,name varchar2(50));Table created.

建立一个control文件

vi tb_sqlldr.ctlloaddata

infile'db1.txt' --数据来源文本 append into table tb_sqlldr --数据导入到表tb_sqldr中，导入方式为追加，如果想覆盖 fields terminated by "|" --4、字段终止于X'09'，是一个制表符(tab) (id,name) --定义对应的字段名称，注意顺序

导入数据分成四种模式，可以根据需求选择：

APPEND // 原先的表有数据 就加在后面

INSERT // 装载空表 如果原先的表有数据 sqlloader会停止 默认值

REPLACE // 原先的表有数据 原先的数据会全部删除

TRUNCATE // 指定的内容和replace的相同 会用truncate语句删除现存数据

执行导入操作

sqlldr userid=test/test control=tb_sqlldr.ctl

执行导入后验证数据

SQL> select count(*) fromtb_sqlldr;COUNT(*)---------- 49988

sqlldr还有很多参数供选择，比如log、bad这些，查看帮助即可

[oracle@centos5 ~]$ sqlldr

SQL*Loader: Release 10.2.0.4.0 - Production on Thu Jun 13 17:07:26 2013

Copyright (c) 1982, 2007, Oracle.  All rights reserved.

Usage: SQLLDR keyword=value [,keyword=value,...]

Valid Keywords:

userid -- ORACLE username/password

control -- control file name

log -- log file name

bad -- bad file name

data -- data file name

discard -- discard file name

discardmax -- number of discards to allow          (Default all)

skip -- number of logical records to skip    (Default 0)

load -- number of logical records to load    (Default all)

errors -- number of errors to allow            (Default 50)

rows -- number of rows in conventional path bind array or between direct path data saves

(Default: Conventional path 64, Direct path all)

bindsize -- size of conventional path bind array in bytes  (Default 256000)

silent -- suppress messages during run (header,feedback,errors,discards,partitions)

direct -- use direct path                      (Default FALSE)

parfile -- parameter file: name of file that contains parameter specifications

parallel -- do parallel load                     (Default FALSE)

file -- file to allocate extents from

skip_unusable_indexes -- disallow/allow unusable indexes or index partitions  (Default FALSE)

skip_index_maintenance -- do not maintain indexes, mark affected indexes as unusable  (Default FALSE)

commit_discontinued -- commit loaded rows when load is discontinued  (Default FALSE)

readsize -- size of read buffer                  (Default 1048576)

external_table -- use external table for load; NOT_USED, GENERATE_ONLY, EXECUTE  (Default NOT_USED)

columnarrayrows -- number of rows for direct path column array  (Default 5000)

streamsize -- size of direct path stream buffer in bytes  (Default 256000)

multithreading -- use multithreading in direct path

resumable -- enable or disable resumable for current session  (Default FALSE)

resumable_name -- text string to help identify resumable statement

resumable_timeout -- wait time (in seconds) for RESUMABLE  (Default 7200)

date_cache -- size (in entries) of date conversion cache  (Default 1000)

PLEASE NOTE: Command-line parameters may be specified either by

position or by keywords.  An example of the former case is 'sqlldr

scott/tiger foo'; an example of the latter is 'sqlldr control=foo

userid=scott/tiger'.  One may specify parameters by position before

but not after parameters specified by keywords.  For example,

'sqlldr scott/tiger control=foo logfile=log' is allowed, but

'sqlldr scott/tiger control=foo log' is not, even though the

position of the parameter 'log' is correct.