通过命令导出查询数据到txt文档

mysql -uroot -p
use test
SELECT * FROM test INTO OUTFILE '/tmp/test.txt';

数据库横向相加，变成新的一列表

SELECT test_value1+test_value2 as temp_name FROM test WHERE test_value1+test_value2 >= 60
/*例如
SELECT name,id_car,uuid,status,type_id FROM `test` WHERE (status=0 OR status=1) AND is_new=2 AND score+other >= 60 AND uuid != ""
*/