REVOKE <privileges>

REVOKE <privileges> 语句用于删除已有用户的权限。执行 REVOKE <privileges> 语句需要拥有分配的权限,并且拥有 GRANT OPTION 权限。

语法图

GrantStmt:

GrantStmt

PrivElemList:

PrivElemList

PrivElem:

PrivElem

PrivType:

PrivType

ObjectType:

ObjectType

PrivLevel:

PrivLevel

UserSpecList:

UserSpecList

示例

CREATE USER 'newuser' IDENTIFIED BY 'mypassword';
Query OK, 1 row affected (0.02 sec)
GRANT ALL ON test.* TO 'newuser';
Query OK, 0 rows affected (0.03 sec)
SHOW GRANTS FOR 'newuser';
+-------------------------------------------------+
| Grants for newuser@%                            |
+-------------------------------------------------+
| GRANT USAGE ON *.* TO 'newuser'@'%'             |
| GRANT ALL PRIVILEGES ON test.* TO 'newuser'@'%' |
+-------------------------------------------------+
2 rows in set (0.00 sec)
REVOKE ALL ON test.* FROM 'newuser';
Query OK, 0 rows affected (0.03 sec)
SHOW GRANTS FOR 'newuser';
+-------------------------------------+
| Grants for newuser@%                |
+-------------------------------------+
| GRANT USAGE ON *.* TO 'newuser'@'%' |
+-------------------------------------+
1 row in set (0.00 sec)
DROP USER 'newuser';
Query OK, 0 rows affected (0.14 sec)
SHOW GRANTS FOR 'newuser';
ERROR 1141 (42000): There is no such grant defined for user 'newuser' on host '%'

MySQL 兼容性

REVOKE <privileges> 语句与 MySQL 完全兼容。如有任何兼容性差异,请在 GitHub 上提交 issue

另请参阅