MySQL 5.7 误删管理员root%'localhost'账户的解决方法。 1)停止数据库 kill Mysql进程 2)在加上 --skip-grant-tables启动mysql 进程加粗样式 其中--skip-grant-tables意思是启动MySQL 服务的时候跳过权限表
MySQL 5.7 误删管理员root%'localhost'账户的解决方法。
1)停止数据库kill Mysql进程
2)在加上 --skip-grant-tables启动mysql 进程加粗样式其中--skip-grant-tables意思是启动MySQL 服务的时候跳过权限表认证。启动后,连接到MySQL 的root 将不需要口令cd /mysqldata/mysql/bin./mysqld_safe --defaults-file=/etc/my.cnf --user=mysql --skip-grant-tables&
3)用空密码的root 用户连接到MySQL,并且更改root 口令mysql -uroot -p use mysql;insert into user set user='root',ssl_cipher='',x509_issuer='',x509_subject='';flush privileges;GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY 'mN6WT8c#' WITH GRANT OPTION; flush privileges;
4)此时查看新添加用户的权限mysql> select * from mysql.user where user='root'\G;*************************** 1. row *************************** Host: localhost User: root Select_priv: Y Insert_priv: Y Update_priv: Y Delete_priv: Y Create_priv: Y Drop_priv: Y Reload_priv: Y Shutdown_priv: Y Process_priv: Y File_priv: Y Grant_priv: Y References_priv: Y Index_priv: Y Alter_priv: Y Show_db_priv: Y Super_priv: Y Create_tmp_table_priv: Y Lock_tables_priv: Y Execute_priv: Y Repl_slave_priv: Y Repl_client_priv: Y Create_view_priv: Y Show_view_priv: Y Create_routine_priv: Y Alter_routine_priv: Y Create_user_priv: Y Event_priv: Y Trigger_priv: YCreate_tablespace_priv: Y ssl_type: ssl_cipher: x509_issuer: x509_subject: max_questions: 0 max_updates: 0 max_connections: 0 max_user_connections: 0 plugin: mysql_native_password authentication_string: *A1027271824AD76D2BBEED42D431EF9273BB492A password_expired: N password_last_changed: 2019-07-11 16:29:23 password_lifetime: NULL account_locked: N*************************** 2. row *************************** Host: % User: root Select_priv: Y Insert_priv: Y Update_priv: Y Delete_priv: Y Create_priv: Y Drop_priv: Y Reload_priv: Y Shutdown_priv: Y Process_priv: Y File_priv: Y Grant_priv: N References_priv: Y Index_priv: Y Alter_priv: Y Show_db_priv: Y Super_priv: Y Create_tmp_table_priv: Y Lock_tables_priv: Y Execute_priv: Y Repl_slave_priv: Y Repl_client_priv: Y Create_view_priv: Y Show_view_priv: Y Create_routine_priv: Y Alter_routine_priv: Y Create_user_priv: Y Event_priv: Y Trigger_priv: YCreate_tablespace_priv: Y ssl_type: ssl_cipher: x509_issuer: x509_subject: max_questions: 0 max_updates: 0 max_connections: 0 max_user_connections: 0 plugin: mysql_native_password authentication_string: *A1F1CB851D62F002C09A0C9C4A76262473432F55 password_expired: N password_last_changed: 2019-07-04 16:55:40 password_lifetime: NULL account_locked: N2 rows in set (0.00 sec)
ERROR: No query specified
5)重启mysql服务cd /mysqldata/mysql/bin[root@558idc bin]# ./mysqladmin -uroot -p shutdown输入密码:
或者kill Mysql进程 [root@558idc /]# cd /mysqldata/mysql/bin [root@558idc bin]# ./mysqld_safe --defaults-file=/etc/my.cnf --user=mysql &