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sql-statement-rename-user.md

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RENAME USER
An overview of the usage of RENAME USER for the TiDB database.

RENAME USER

RENAME USER is used to rename an existing user.

Synopsis

RenameUserStmt ::=
    'RENAME' 'USER' UserToUser ( ',' UserToUser )*
UserToUser ::=
    Username 'TO' Username
Username ::=
    StringName ('@' StringName | singleAtIdentifier)? | 'CURRENT_USER' OptionalBraces

Examples

CREATE USER 'newuser' IDENTIFIED BY 'mypassword';
Query OK, 1 row affected (0.02 sec)
SHOW GRANTS FOR 'newuser';
+-------------------------------------+
| Grants for newuser@%                |
+-------------------------------------+
| GRANT USAGE ON *.* TO 'newuser'@'%' |
+-------------------------------------+
1 row in set (0.00 sec)
RENAME USER 'newuser' TO 'testuser';
Query OK, 0 rows affected (0.08 sec)
SHOW GRANTS FOR 'testuser';
+--------------------------------------+
| Grants for testuser@%                |
+--------------------------------------+
| GRANT USAGE ON *.* TO 'testuser'@'%' |
+--------------------------------------+
1 row in set (0.00 sec)
SHOW GRANTS FOR 'newuser';
ERROR 1141 (42000): There is no such grant defined for user 'newuser' on host '%'

MySQL compatibility

RENAME USER is expected to be fully compatible with MySQL. If you find any compatibility difference, you can report a bug.

See also