SHOW CHARACTER SET

SHOW CHARACTER SET 语句提供 TiDB 中可用字符集的静态列表。此列表不反映当前连接或用户的任何属性。

语法图

ShowCharsetStmt
SHOWCHARACTERCHARSETCHARSETShowLikeOrWhere
ShowLikeOrWhere
LIKESimpleExprWHEREExpression

示例

SHOW CHARACTER SET;
+---------+---------------+-------------------+--------+ | Charset | Description | Default collation | Maxlen | +---------+---------------+-------------------+--------+ | utf8 | UTF-8 Unicode | utf8_bin | 3 | | utf8mb4 | UTF-8 Unicode | utf8mb4_bin | 4 | | ascii | US ASCII | ascii_bin | 1 | | latin1 | Latin1 | latin1_bin | 1 | | binary | binary | binary | 1 | +---------+---------------+-------------------+--------+ 5 rows in set (0.00 sec)
SHOW CHARACTER SET LIKE 'utf8%';
+---------+---------------+-------------------+--------+ | Charset | Description | Default collation | Maxlen | +---------+---------------+-------------------+--------+ | utf8 | UTF-8 Unicode | utf8_bin | 3 | | utf8mb4 | UTF-8 Unicode | utf8mb4_bin | 4 | +---------+---------------+-------------------+--------+ 2 rows in set (0.00 sec)
SHOW CHARACTER SET WHERE Description='UTF-8 Unicode';
+---------+---------------+-------------------+--------+ | Charset | Description | Default collation | Maxlen | +---------+---------------+-------------------+--------+ | utf8 | UTF-8 Unicode | utf8_bin | 3 | | utf8mb4 | UTF-8 Unicode | utf8mb4_bin | 4 | +---------+---------------+-------------------+--------+ 2 rows in set (0.00 sec)

MySQL 兼容性

SHOW CHARACTER SET 语句功能与 MySQL 完全兼容。注意,TiDB 中字符集的默认排序规则与 MySQL 有所不同,具体可以参考与 MySQL 兼容性对比。如发现任何兼容性差异,请尝试 TiDB 支持资源

另请参阅

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