SHOW CHARACTER SET
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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:
CharsetKw:
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)
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，请在 GitHub 上提交 issue。
另请参阅
SHOW CHARACTER SET更新于 4/22/2025, 7:08:23 AM: update the default collation of GBK from gbk_bin to gbk_chinese_ci (#20234) (#20238)