mysql 无法插入中文_mysql无法插入中文解决方案
在插入中的时候报错：
mysql> insert into product (name,price) values('无人机',1000);
ERROR 1366 (HY000): Incorrect string value: '\xE6\x97\xA0\xE4\xBA\xBA...' for column 'name' at row 1
怀疑是数据库的字符集编码有问题,查询数据库表字符集
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/soft/mysql/share/charsets/ |
+--------------------------+---------------------------------+
8 rows in set (0.00 sec)
在第三行character_set_database为latin1，修改字符集为utf-8：
mysql> alter database test default character set utf8 collate utf8_general_ci;
Query OK, 0 rows affected (0.00 sec)
mysql> show variables like '%char%';
+--------------------------+---------------------------------+
| Variable_name | Value |
+--------------------------+---------------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/soft/mysql/share/charsets/ |
+--------------------------+---------------------------------+
8 rows in set (0.00 sec)
修改字符集完成，重新插入数据，结果依旧报错：
mysql> insert into product (name,price) values('无人机',1000);
ERROR 1366 (HY000): Incorrect string value: '\xE6\x97\xA0\xE4\xBA\xBA...' for column 'name' at row 1
感觉有点问题，数据库的字符集已经改过来了，为啥还是不好用呢？我又重新查了一下表的字符集，发现表的字符集竟然没有变(test是数据库名，product是表名)：
mysql> show table status from test like 'product'\G
*************************** 1. row ***************************
Name: product
Engine: InnoDB
Version: 10
Row_format: Compact
Rows: 0
Avg_row_length: 0
Data_length: 16384
Max_data_length: 0
Index_length: 0
Data_free: 0
Auto_increment: 2
Create_time: 2019-07-27 22:29:27
Update_time: NULL
Check_time: NULL
Collation: latin1_swedish_ci
Checksum: NULL
Create_options:
Comment：
1 row in set (0.00 sec)
到这里，我又想起来表的列好像也有自己的字符集，查了一下：
mysql> show full columns from product\G
*************************** 1. row ***************************
Field: product_id
Type: int(10) unsigned
Collation: NULL
Null: NO
Key: PRI
Default: NULL
Extra: auto_increment
Privileges: select,insert,update,references
Comment:
*************************** 2. row ***************************
Field: name
Type: varchar(10)
Collation: latin1_swedish_ci
Null: YES
Key:
Default: NULL
Extra:
Privileges: select,insert,update,references
Comment:
*************************** 3. row ***************************
Field: price
Type: double
Collation: NULL
Null: YES
Key:
Default: NULL
Extra:
Privileges: select,insert,update,references
Comment:
3 rows in set (0.00 sec)
果然在2. row中name那一列的Collation: latin1_swedish_ci的编码也是需要改的，开始进行修改：
mysql> ALTER TABLE product CONVERT TO CHARACTER SET utf8 COLLATTE utf8_general_ci;
Query OK, 1 row affected (0.09 sec)
Records: 1 Duplicates: 0 Warnings: 0
###
mysql> show table status from test like 'product'\G
*************************** 1. row ***************************
Name: product
Engine: InnoDB
Version: 10
Row_format: Compact
Rows: 0
Avg_row_length: 0
Data_length: 16384
Max_data_length: 0
Index_length: 0
Data_free: 0
Auto_increment: 2
Create_time: 2019-07-27 23:22:31
Update_time: NULL
Check_time: NULL
Collation: utf8_general_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.00 sec)
mysql> show full columns from product\G
*************************** 1. row ***************************
Field: product_id
Type: int(10) unsigned
Collation: NULL
Null: NO
Key: PRI
Default: NULL
Extra: auto_increment
Privileges: select,insert,update,references
Comment:
*************************** 2. row ***************************
Field: name
Type: varchar(10)
Collation: utf8_general_ci
Null: YES
Key:
Default: NULL
Extra:
Privileges: select,insert,update,references
Comment:
*************************** 3. row ***************************
Field: price
Type: double
Collation: NULL
Null: YES
Key:
Default: NULL
Extra:
Privileges: select,insert,update,references
Comment:
3 rows in set (0.00 sec)
修改完毕，进行验证：
mysql> insert into product (name,price) values('无人机',1000);
Query OK, 1 row affected (0.01 sec)
问题解决！