oracle数据库sql中文乱码问题，字符编码环境变量

#!/bin/bash
export NLS_LANG='SIMPLIFIED CHINESE_CHINA.AL32UTF8'
#source ~/.bash_profile
data_date=`date +%Y%m%d%H%M%S`

sub_dir=$(cd `dirname $0`;pwd)
cd $sub_dir


python check_ecl.py