| title | summary | aliases | ||
|---|---|---|---|---|
SET [NAMES|CHARACTER SET] |
TiDB 数据库中 SET [NAMES|CHARACTER SET] 的使用概况。 |
|
SET NAMES，SET CHARACTER SET 和 SET CHARSET 语句用于修改当前连接的变量 character_set_client，character_set_results 和 character_set_connection。
SetNamesStmt:
VariableAssignmentList:
VariableAssignment:
CharsetName:
StringName:
CharsetKw:
CharsetNameOrDefault:
{{< copyable "sql" >}}
SHOW VARIABLES LIKE 'character_set%';+--------------------------+--------------------------------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------------------------------+
| character_sets_dir | /usr/local/mysql-5.6.25-osx10.8-x86_64/share/charsets/ |
| character_set_connection | utf8mb4 |
| character_set_system | utf8 |
| character_set_results | utf8mb4 |
| character_set_client | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_server | utf8mb4 |
+--------------------------+--------------------------------------------------------+
8 rows in set (0.01 sec)
{{< copyable "sql" >}}
SET NAMES utf8;Query OK, 0 rows affected (0.00 sec)
{{< copyable "sql" >}}
SHOW VARIABLES LIKE 'character_set%';+--------------------------+--------------------------------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------------------------------+
| character_sets_dir | /usr/local/mysql-5.6.25-osx10.8-x86_64/share/charsets/ |
| character_set_connection | utf8 |
| character_set_system | utf8 |
| character_set_results | utf8 |
| character_set_client | utf8 |
| character_set_server | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
+--------------------------+--------------------------------------------------------+
8 rows in set (0.00 sec)
{{< copyable "sql" >}}
SET CHARACTER SET utf8mb4;Query OK, 0 rows affected (0.00 sec)
{{< copyable "sql" >}}
SHOW VARIABLES LIKE 'character_set%';+--------------------------+--------------------------------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------------------------------+
| character_set_connection | utf8mb4 |
| character_set_system | utf8 |
| character_set_results | utf8mb4 |
| character_set_client | utf8mb4 |
| character_sets_dir | /usr/local/mysql-5.6.25-osx10.8-x86_64/share/charsets/ |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_server | utf8mb4 |
+--------------------------+--------------------------------------------------------+
8 rows in set (0.00 sec)
SET [NAMES|CHARACTER SET] 语句与 MySQL 完全兼容。如发现任何兼容性差异，请在 GitHub 上提交 issue。