MySQL中导入 导出CSV

来自：http://blog.csdn.net/sara_yhl/article/details/6850107

导出

select * from test_info
into outfile '/tmp/test.csv'
fields terminated by ',' optionally enclosed by '"' escaped by '"'
lines terminated by '\r\n';

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';

其中关键参数是

fields terminated by ',' optionally enclosed by '"' escaped by '"'
lines terminated by '\r\n'

这个参数是根据RFC4180文档设置的，该文档全称Common Format and MIME Type for Comma-Separated Values (CSV) Files，其中详细描述了CSV格式，其要点包括：

(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。

shell 例子

#!/bin/sh

. /opt/shtools/commons/mysql.sh

# MYSQL_CSV_FORMAT="fields terminated by ',' optionally enclosed by '\"' escaped by '\"' lines terminated by '\r\n'"
echo "MYSQL_CSV_FORMAT=$MYSQL_CSV_FORMAT"

rm /tmp/test.csv

mysql -p --default-character-set=gbk -t --verbose test <<EOF

use test;

create table if not exists test_info (
id  integer not null,
content varchar(64) not null,
primary key (id)
);

delete from test_info;

insert into test_info values (2010, 'hello, line
suped
seped
"
end'
);

select * from test_info;

-- select * from test_info into outfile '/tmp/test.csv' fields terminated by ',' optionally enclosed by '"' escaped by '"' lines terminated by '\r\n';
select * from test_info into outfile '/tmp/test.csv' $MYSQL_CSV_FORMAT;

delete from test_info;

-- load data infile '/tmp/test.csv' into table test_info fields terminated by ','  optionally enclosed by '"' escaped by '"' lines terminated by '\r\n';
load data infile '/tmp/test.csv' into table test_info $MYSQL_CSV_FORMAT;

select * from test_info;

EOF

echo "===== content in /tmp/test.csv ====="
cat /tmp/test.csv