前景：有大量的csv数据重oracle导出字符编码gb2312要导入mysql
1、shell先修改csv文本编码格式
iconv -f GB18030 -t utf-8 "$gb2312file" > "$utf8file" #gb18030是2312的一个超集
2、登录mysql执行下面命令
LOAD DATA INFILE ‘/tmp/file.csv‘ INTO TABLE t1 CHARACTER SET utf8 FIELDS TERMINATED BY ‘,‘ ENCLOSED BY ‘"‘ LINES TERMINATED BY ‘\r\n‘ (1)字段之间以逗号分隔，数据行之间以\r\n分隔； (2)字符串以半角双引号包围，字符串本身的双引号用两个双引号表示
3、mysql一些方便语句
csv导出 select * from test_info into outfile ‘/tmp/test.csv‘ fields terminated by ‘,‘ optionally enclosed by ‘"‘ escaped by ‘"‘ lines terminated by ‘\r\n‘; csv导入 load data infile ‘/tmp/test.csv‘ into table test_info fields terminated by ‘,‘ optionally enclosed by ‘"‘ escaped by ‘"‘ lines terminated by ‘\r\n‘; mysql快速执行脚本 mysql -h 172.21.210.24 -P 4000 -u root -D rkw_ezc_prod -ppasswd <<EOF select * from INFORMATION_SCHEMA.`KEY_COLUMN_USAGE`； EOF
原文：https://www.cnblogs.com/wukc/p/13512032.html