一、自动输出中文字符集
select * from db into outfile 'test.csv' CHARACTER SET gbk fields terminated by ',' optionally enclosed by '"' escaped by '"' lines terminated by '\r\n';
二、导出后转换字符集
转换成CSV文件，如果乱码将CSV已记事本打开另存为UTF8
select * from db into outfile 'test.csv' CHARACTER SET utf8 fields terminated by ',' optionally enclosed by '' lines terminated by '\n';
三、导入
导入文件扩展名不敏感，只要直接可读就可以按照对应分隔符导入
tips：导入表特定字段可以先建个对应字段的临时表，然后导入到临时表，再使用insert into table(column_a,column_b) select column_a,column_b from table_tmp 导入进去
http://dev.mysql.com/doc/refman/5.5/en/load-data.html
##以,为间隔符
load data infile 'test.csv' into table test_table fields terminated by ',' lines terminated by '\r\n';##以tab为间隔符
load data local infile "test.csv" into table test_table fields terminated by '\t' lines terminated by '\r\n';
##导入特定字段
load data infile 'test.csv' into table test_table (column1);
fields terminated by 表示字段分隔符
lines terminated by 表示行分隔符
optionally enclosed by '"' escaped by '"' 字符串需要用引号区分区域
##导入含字符串的文件
load data infile 'test.txt'
into table test_table
fields terminated by ',' optionally enclosed by '"' escaped by '"'
lines terminated by '\r\n';
