Αποτελέσματα Αναζήτησης
28 Φεβ 2009 · This worked for me: GRANT USAGE ON *.*. TO 'username'@'localhost'; DROP USER 'username'@'localhost'; This creates the user if it doesn't already exist (and grants it a harmless privilege), then deletes it either way. Found solution here: http://bugs.mysql.com/bug.php?id=19166.
DROP USER [IF EXISTS] user [, user] ... The DROP USER statement removes one or more MySQL accounts and their privileges. It removes privilege rows for the account from all grant tables.
In MySQL 5.7.8+, you can use the IF EXISTS clause to conditionally drop a user only if it exists: DROP USER [ IF EXISTS ] account_name [,account_name2]...; Code language: SQL (Structured Query Language) ( sql )
3 Αυγ 2015 · IF (EXISTS(SELECT NULL FROM `mysql`.`user` WHERE `User` = MyUserName AND `Host` = MyHostName)) THEN. SET @SQL = (SELECT mResult FROM (SELECT GROUP_CONCAT("DROP USER ", "'", MyUserName, "'@'", MyHostName, "'") AS mResult) AS Q LIMIT 1); PREPARE STMT FROM @SQL; EXECUTE STMT;
15.1.26 DROP FUNCTION Statement. The DROP FUNCTION statement is used to drop stored functions and loadable functions: For information about dropping stored functions, see Section 15.1.29, “DROP PROCEDURE and DROP FUNCTION Statements”.
DROP USER [IF EXISTS] user [, user] ... The DROP USER statement removes one or more MySQL accounts and their privileges. It removes privilege rows for the account from all grant tables. Roles named in the mandatory_roles system variable value cannot be dropped.
The MySQL DROP FUNCTION Statement is used to drop/delete such user defined (loadable) functions added to the server. To execute this function, you need DELETE privilege. Syntax. Following is the syntax the CREATE FUNCTION statement for User-Defined Functions −. DROP FUNCTION [IF EXISTS] function_name.
