问题
- 加载含有中文字符的数据到表中出错
mysql> CREATE TABLE food(
-> id INT(10) PRIMARY KEY AUTO_INCREMENT NOT NULL,
-> NAME VARCHAR(20) NOT NULL,
-> company VARCHAR(30) NOT NULL,
-> price FLOAT,
-> produce_time YEAR,
-> validity_time INT(4),
-> address VARCHAR(50)
-> );
Query OK, 0 rows affected (0.07 sec)
mysql> INSERT INTO food(id,NAME,company,price,produce_time,validity_time,address) VALUES(4,'FF咖啡','FF咖啡厂',20,2002,5,'天津');
ERROR 1366 (HY000): Incorrect string value: '\xE5\x92\x96\xE5\x95\xA1' for column 'NAME' at row 1
原因
- mysql默认编码latin1是不支持中文字符的,所以报错。
解决
- 通过设置编码字符为utf8,从而支持中文字符。
1、查看当前库默认编码格式
mysql> show variables like '%char%';
+--------------------------------------+----------------------------+
| Variable_name | Value |
+--------------------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
| validate_password_special_char_count | 1 |
+--------------------------------------+----------------------------+
9 rows in set (0.00 sec)
2、将character_set_database和character_set_server设置为utf8
mysql> set character_set_database=utf8;
Query OK, 0 rows affected, 1 warning (0.02 sec)
mysql> set character_set_server=utf8;
Query OK, 0 rows affected (0.00 sec)
3、删除数据库并新建数据库,并切到该数据库下
- 因为只有在编码格式改变以后,再建库才会生效。
drop database student;
create database student;
use student;
验证
建表、添加数据
mysql> create table Student(
-> Sno int not null auto_increment primary key,
-> Sname varchar(10) not null,
-> Sex char(1) not null,
-> Sage tinyint(100) not null,
-> Sdept char(4) not null)comment = '学生表';
Query OK, 0 rows affected (0.03 sec)
mysql> insert into Student values ( 1,'李勇', '男', 20, 'CS');
Query OK, 1 row affected (0.02 sec)
ok,成功解决
总结
如果某表中需要添加中文字符时需要在其库之前将character_set_database和character_set_server
设置为utf8
set character_set_database=utf8;
set character_set_server=utf8;
然后再建库,建表插入中文字符数据
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