mysql怎么查询表的字符集编码

MySQL查询表字符集编码的两种方法

1、使用show table status语句查看指定表的字符集编码

SHOW TABLE STATUS命令可以获取指定数据库中每个数据表的信息，包括字符集编码。

show table status from 数据库名;

但只想获取指定表的信息，就可利用like进行限制：

show table status from 库名 like 表名;

示例：查看class_7数据库中test_info表的字符集编码

show table status from class_7 like 'test_info';

mysql> show table status from class_7 like 'test_info';
+-----------+--------+---------+------------+------+----------------+-------------------------+-------------+------------+-----------------+----------+-
| Name      | Engine | Version | Row_format | Rows | Avg_row_length | Data_leate_time         | Update_time | Check_time | Collation       | Checksum | 
+-----------+--------+---------+------------+------+----------------+-------------------------+-------------+------------+-----------------+----------+-
| test_info | InnoDB |      10 | Compact    |   10 |           1638 |       17-12-05 19:01:55 | NULL        | NULL       | utf8_general_ci |     NULL | 
+-----------+--------+---------+------------+------+----------------+-------------------------+-------------+------------+-----------------+----------+-
1 row in set (0.00 sec)

2、使用show columns语句配合full关键字查看当前数据库中指定表中所有列的字符集编码

在mysql中，SHOW COLUMNS命令可以显示表的列信息，而要获取有关列的更多信息，请将FULL关键字添加到SHOW COLUMNS命令中：

show full columns from 表名;

该语句可以输出指定表中所有列的字符集编码

示例：查看test_info表中所有列的字符集编码

show full columns from test_info;

mysql> show full columns from test_info;
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
| Field | Type     | Collation       | Null | Key | Default | Extra | Privileges                      | Comment |
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
| id    | int(3)   | NULL            | NO   | PRI | NULL    |       | select,insert,update,references |         |
| name  | char(12) | utf8_general_ci | YES  |     | NULL    |       | select,insert,update,references |         |
| dorm  | char(10) | utf8_general_ci | YES  |     | NULL    |       | select,insert,update,references |         |
| addr  | char(12) | utf8_general_ci | YES  |     | 未知    |       | select,insert,update,references |         |
| score | int(3)   | NULL            | YES  |     | NULL    |       | select,insert,update,references |         |
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
5 rows in set (0.00 sec)