SET PASSWORD
此语句用于更改 TiDB 系统数据库中用户账户的密码。
概述
- SetPasswordStmt
SetPasswordStmt ::=
"SET" "PASSWORD" ( "FOR" Username )? "=" ( stringLit | "PASSWORD" "(" stringLit ")" )
示例
mysql> SET PASSWORD='test'; -- 更改我的密码
Query OK, 0 rows affected (0.01 sec)
mysql> CREATE USER 'newuser' IDENTIFIED BY 'test';
Query OK, 1 row affected (0.00 sec)
mysql> SHOW CREATE USER 'newuser';
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CREATE USER for newuser@% |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CREATE USER 'newuser'@'%' IDENTIFIED WITH 'mysql_native_password' AS '*94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> SET PASSWORD FOR newuser = 'test';
Query OK, 0 rows affected (0.01 sec)
mysql> SHOW CREATE USER 'newuser';
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CREATE USER for newuser@% |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CREATE USER 'newuser'@'%' IDENTIFIED WITH 'mysql_native_password' AS '*94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> SET PASSWORD FOR newuser = PASSWORD('test'); -- 早期 MySQL 版本中的废弃语法
Query OK, 0 rows affected (0.00 sec)
mysql> SHOW CREATE USER 'newuser';
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CREATE USER for newuser@% |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| CREATE USER 'newuser'@'%' IDENTIFIED WITH 'mysql_native_password' AS '*94BDCEBE19083CE2A1F959FD02F964C7AF4CFC29' REQUIRE NONE PASSWORD EXPIRE DEFAULT ACCOUNT UNLOCK |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
MySQL 兼容性
TiDB 中的 SET PASSWORD 语句与 MySQL 完全兼容。如果你发现任何兼容性差异，请报告一个 bug。