1,配置secure crt及rhel5上面的NLS_LANG内容如下：

-bash-3.1$ env|grep LANG
NLS_LANG=SIMPLIFIED CHINESE_CHINA.utf8
LANG=en_US.UTF-8

2，sqlloader导入数据的控制文件内容如下：

-bash-3.1$ more insert_batch.ctl
load data
infile '/oracle/from_gbk_utf8.txt'
append into table e_schoolinfo
fields terminated by ','
(schoolid,schoolname,city,district)

3，用sqlloader进入导入数据

sqlldr userid=pd/system control=/oracle/insert_batch.ctl log=/oracle/sqlload1.log

SQL*Loader: Release 10.2.0.4.0 - Production on 星期五 7月 2 07:04:12 2010

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

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4,查对导入的数据源文件为from_gbk_utf8.txt
 from_gbk_utf8.txt  -bash-3.1$

注：要导入的数据源文件为以csv为源，转为txt另存为utf8字符集转化而来