12.4.1.4. RENAME USER Syntax

RENAME USER old_user TO new_user
    [, old_user TO new_user] ...

The RENAME USER statement renames existing MySQL accounts. To use it, you must have the global CREATE USER privilege or the UPDATE privilege for the mysql database. An error occurs if any old account does not exist or any new account exists. Each account name uses the format described in Section 5.4.3, “Specifying Account Names”. For example:

RENAME USER 'jeffrey'@'localhost' TO 'jeff'@'127.0.0.1';

If you specify only the user name part of the account name, a host name part of '%' is used.

RENAME USER causes the privileges held by the old user to be those held by the new user. However, RENAME USER does not automatically drop or invalidate databases or objects within them that the old user created. This includes stored programs or views for which the DEFINER attribute names the old user. Attempts to access such objects may produce an error if they execute in definer security context. (For information about security context, see Section 19.6, “Access Control for Stored Programs and Views”.)

The privilege changes take effect as indicated in Section 5.4.6, “When Privilege Changes Take Effect”.

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