我在mysql-db中添加了一个用户,可以从多个主机访问,例如:
GRANT ALL PRIVILEGES ON `db`.* TO 'dbuser'@'host1';
GRANT ALL PRIVILEGES ON `db`.* TO 'dbuser'@'host2';
GRANT ALL PRIVILEGES ON `db`.* TO 'dbuser'@'host3';
GRANT ALL PRIVILEGES ON `db`.* TO 'dbuser'@'host4';
....
完全删除用户的最短方法是什么?我试过了:
drop user 'dbuser'@'%';
ERROR 1396 (HY000): Operation DROP USER failed for 'dbuser'@'%'
drop user 'dbuser';
ERROR 1396 (HY000): Operation DROP USER failed for 'dbuser'@'%'
show grants for 'dbuser';
ERROR 1141 (42000): There is no such grant defined for user 'dbuser' on host '%'
我想,%wouzld被视为通配符。 Butr唯一的方法就是让每个主机都放弃用户,例如:
drop user 'dbuser'@'host1';
drop user 'dbuser'@'host2';
drop user 'dbuser'@'host3';
...
是否有更方便的方法来删除用户?
答案 0 :(得分:1)
MySQL< = 5.6.x
select user,host,password from mysql.user;
MySQL> = 5.7.x
select user,host,authentication_string from mysql.user;
上面你需要创建一个回滚计划,相信如果你删除了很多用户并且你想节省时间,你总是需要一个。
现在问你的问题:
select concat("DROP USER ","'",user,"'@'",host,"';") from mysql.user where host like "127.0.%" or host like "192.168%";
根据您的平台,探索如何将输出粘贴到文件中并执行它
答案 1 :(得分:0)
如果您使用的是MySQL> = 5.0.2,则可以删除帐户及其权限,如下所示:
DROP USER用户;
该语句从所有授权表中删除该帐户的特权行。
答案 2 :(得分:0)
SELECT GROUP_CONCAT('\'',user, '\'@\'', host, '\'') INTO @users FROM mysql.user WHERE user = 'root';
SET @users = CONCAT('DROP USER ', @users);
PREPARE stmt FROM @users;
EXECUTE stmt;