Why can't mysql insert data? After AppServ is installed, mysql is used for the first time. There is no graphical interface. the following operations are performed on "MySql & nbsp; Command & nbsp; Line & nbsp; Client": Why cannot mysql insert data?
After AppServ is installed, mysql is used for the first time. There is no graphical interface. the operations on "MySql Command Line Client" are as follows:
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Mysql> create database cars;
Query OK, 1 row affected (0.00 sec)
Mysql> use cars;
Database changed
Mysql> create table cars (id int, xm char (8), h char (8), vin char (20 ));
Query OK, 0 rows affected (0.06 sec)
Mysql> insert into cars (id, xm, h, vin) values (1, 'Lian Dongfang ', 'Yu A5F568', 'ldc666l2980790000 ');
Query OK, 1 row affected, 1 warning (0.02 sec)
Mysql> select * from cars;
+ ------ + ---------- + ------------------- +
| Id | xm | h | vin |
+ ------ + ---------- + ------------------- +
| 1 | Yu A5F568 | LDC666L2980790000 |
+ ------ + ---------- + ------------------- +
1 rows in set (0.02 sec)
Mysql> select xm from cars;
+ ------ +
| Xm |
+ ------ +
|
+ ------ +
1 rows in set (0.00 sec)
Mysql> update cars set xm = 'Lian 'where id = 1;
Query OK, 0 rows affected, 1 warning (0.01 sec)
Rows matched: 1 Changed: 0 Warnings: 0
Why cannot I set the value of the xm field? Why cannot I update it? Thank you ~~~
------ Solution --------------------
Your #1 content is only visible after I reply to #3. Otherwise, it will be explained at the beginning.
\ XC1 \ xAE \ xB6 \ xAB \ xB7 \ xBD is the gbk internal code of Lian Dongfang.
However, he reported an error. This indicates that the default character set of your database is not latin1 or gbk.
So the Chinese error can only be utf8 (very few people with UCS-2, even it does not matter)
If you insert gbk characters into the utf8 field, an error is returned.
Therefore, set names gbk to notify mysql that the gbk character is used now.
Why did "yu" not report an error?
This depends on how UTF-8 is encoded:
U + 007F 0 xxxxxxx
U + 07FF 110 xxxxx 10 xxxxxx
U + FFFF 1110 xxxx 10 xxxxxx 10 xxxxxx
U + 1 FFFFF 11110xxx 10 xxxxxx 10 xxxxxx 10 xxxxxx
U + 3 FFFFFF 111110xx 10 xxxxxx 10 xxxxxx 10 xxxxxx 10 xxxxxx
U + 7 FFFFFFF 1111110x 10 xxxxxx 10 xxxxxx 10 xxxxxx 10 xxxxxx
Yu's gbk binary internal code is 11010100 10100101
It is in line with the U + 07FF encoding rules, so he will not report an error
