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SHOW CHARACTER SET

此语句提供了 TiDB 中可用字符集的静态列表。输出不反映当前连接或用户的任何属性。

概要

ShowCharsetStmt
SHOWCHARACTERCHARSETCHARSETShowLikeOrWhere
ShowLikeOrWhere
LIKESimpleExprWHEREExpression

示例

SHOW CHARACTER SET;
+---------+-------------------------------------+-------------------+--------+ | Charset | Description | Default collation | Maxlen | +---------+-------------------------------------+-------------------+--------+ | ascii | US ASCII | ascii_bin | 1 | | binary | binary | binary | 1 | | gbk | Chinese Internal Code Specification | gbk_chinese_ci | 2 | | latin1 | Latin1 | latin1_bin | 1 | | utf8 | UTF-8 Unicode | utf8_bin | 3 | | utf8mb4 | UTF-8 Unicode | utf8mb4_bin | 4 | +---------+-------------------------------------+-------------------+--------+ 6 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

TiDB 中 SHOW CHARACTER SET 语句的用法与 MySQL 完全兼容。然而,TiDB 中的字符集可能具有与 MySQL 不同的默认排序规则。详情请参阅 Compatibility with MySQL。如果你发现任何兼容性差异,请 report a bug

相关链接

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