Question

SHOW GRANTS 语句用于显示与用户关联的权限列表。与在 MySQL 中一样，USAGE 权限表示登录 TiDB 的能力。

语法图

ShowGrantsStmt:

Username:

UsingRoles:

RolenameList:

Rolename:

示例

SHOW GRANTS;

+-------------------------------------------+
| Grants for User                           |
+-------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' |
+-------------------------------------------+
1 row in set (0.00 sec)

SHOW GRANTS FOR 'u1';

ERROR 1141 (42000): There is no such grant defined for user 'u1' on host '%'

CREATE USER u1;

Query OK, 1 row affected (0.04 sec)

GRANT SELECT ON test.* TO u1;

Query OK, 0 rows affected (0.04 sec)

SHOW GRANTS FOR u1;

+------------------------------------+
| Grants for u1@%                    |
+------------------------------------+
| GRANT USAGE ON *.* TO 'u1'@'%'     |
| GRANT Select ON test.* TO 'u1'@'%' |
+------------------------------------+
2 rows in set (0.00 sec)

MySQL 兼容性

SHOW GRANTS 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。

另请参阅

• SHOW CREATE USER
• GRANT