问题：文件编码和数据库连接编码不一致，由于要添加初始化数据，批量执行，采用source命令，
root@(none) 03:14:49>use test
Database changed
root@test 03:14:53>show create table ruleG;
*************************** 1. row ***************************
Table: rule
Create Table: CREATE TABLE `rule` (
`id` bigint(20) NOT NULL AUTO_INCREMENT COMMENT '自增主键',
`name` varchar(64) NOT NULL COMMENT '规则名，如：分享',
`status` tinyint(4) NOT NULL COMMENT '状态',
PRIMARY KEY (`id`)
) ENGINE=innodb AUTO_INCREMENT=2 DEFAULT CHARSET=gbk;
root@test 03:15:06>show variables like "%character%";
+--------------------------+----------------------------------+
| Variable_name | Value |
+--------------------------+----------------------------------+
| character_set_client | gbk |
| character_set_connection | gbk |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | gbk |
| character_set_server | gbk |
| character_set_system | utf8 |
+--------------------------+----------------------------------+
7 rows in set (0.00 sec)
root@test 03:17:14>
可以看到客户端连接进来的编码方式是gbk,当我直接使用
root@(none) 03:19:02>source a.sql;
root@test 03:20:45>select * from rule;
+----+--------------------+--------------------------------+
| id | name | status |
+----+--------------------+--------------------------------+
| 1 | 娴囨按 | 0 |
| 2 | 鍏虫敞鎺屾煖鎺ㄦ帹 | 0 |
+----+--------------------+--------------------------------+
2 rows in set (0.00 sec)
root@test 03:20:46>
乱码，为什么？我客户端的连接，表的编码格式是一样的！
再看下a.sql的编码方式：
$file a.sql
a.sql: UTF-8 Unicode text, with CRLF line terminators
文件是utf8编码，再运行下看看：
root@test 02:35:36>set names utf8;
Query OK, 0 rows affected (0.00 sec)
root@test 02:35:57>truncate table rule;
Query OK, 0 rows affected (0.00 sec)
root@test 02:36:04>source a.sql;
Query OK, 1 row affected (0.00 sec)
Query OK, 1 row affected (0.00 sec)
root@test 02:36:08>select * from rule;
+----+--------------------+--------------------------------+
| id | name | status |
+----+--------------------+--------------------------------+
| 1 | 娴囨按 | 0 |
| 2 | 鍏虫敞鎺屾煖鎺ㄦ帹 | 0 |
+----+--------------------+--------------------------------+
2 rows in set (0.00 sec)
root@test 02:36:10>set names gbk;
Query OK, 0 rows affected (0.00 sec)
root@test 02:36:23>select * from rule;
+----+--------------+--------------------------------+
| id | name | status |
+----+--------------+--------------------------------+
| 1 | 灌水 | 0 |
| 2 | 打酱油 | 0 |
+----+--------------+--------------------------------+
2 rows in set (0.00 sec)
root@test 02:36:25>
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