mysql select into outfile
vim /etc/my.cnf
[mysqld]
#开启outfile
secure_file_priv='/server/mysql_data'
show variables like 'secure_file_priv';
SELECT id FROM xiaodai.`user_info` WHERE DEL_FLAG=0 into outfile "/server/mysql_data/id.txt";
ERROR 1290 (HY000): The MySQL server is running with the --secure-file-priv option so it cannot execute this statement