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今天在学习mysql的时候，一顿蜜汁操作，再次使用mysql的时候发现，不管用啥子命令，都出现了一个报错
mysql> select user,password from mysql.user;
ERROR 1142 (42000): SELECT command denied to user ‘root’@‘localhost’ for table ‘user’
看了一下报错信息，权限不够。。。那就是没有权限了，so，给他权限就好了
step01
退出数据库并且关闭mysql服务
mysql> quit
Bye
[root@jinch ~]# /etc/init.d/mysqld stop
Shutting down MySQL.. SUCCESS!
step02
安全模式启动mysql，root用户登录
[root@jinch ~]# mysqld_safe --skip-grant-tables &
[root@jinch ~]# mysql -uroot -p123 mysql
step03
切换数据库&查看表信息中的root用户的localhost权限
mysql> use mysql;
Database changed
mysql> show tables;
+---------------------------+
| Tables_in_mysql |
+---------------------------+
| columns_priv |
| db |
| event |
| func |
| general_log |
| help_category |
| help_keyword |
| help_relation |
| help_topic |
| innodb_index_stats |
| innodb_table_stats |
| ndb_binlog_index |
| plugin |
| proc |
| procs_priv |
| proxies_priv |
| servers |
| slave_master_info |
| slave_relay_log_info |
| slave_worker_info |
| slow_log |
| tables_priv |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
28 rows in set (0.00 sec)
mysql> select * from user where user='root' and host='localhost'\G;
*************************** 1. row ***************************
Host: localhost
User: root
Password: *23AE809DDACAF96AF0FD78ED04B6A265E05AA257
Select_priv: N
Insert_priv: N
Update_priv: N
Delete_priv: N
Create_priv: N
Drop_priv: N
Reload_priv: N
Shutdown_priv: N
Process_priv: N
File_priv: N
Grant_priv: N
References_priv: N
Index_priv: N
Alter_priv: N
Show_db_priv: N
Super_priv: N
Create_tmp_table_priv: N
Lock_tables_priv: N
Execute_priv: N
Repl_slave_priv: N
Repl_client_priv: N
Create_view_priv: N
Show_view_priv: N
Create_routine_priv: N
Alter_routine_priv: N
Create_user_priv: N
Event_priv: N
Trigger_priv: N
Create_tablespace_priv: N
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: NULL
password_expired: N
1 row in set (0.00 sec)
ERROR:
No query specified
这里发现全部都是N ，表示root用户本地登陆没有权限
step04
修改root用户的localhost权限（两种写法）
写法1：
mysql> update mysql.user set Grant_priv='Y',Super_priv='Y' where user='root';
mysql> flush privileges;
mysql>grant all on *.* to 'root'@'localhost';
写法2：
mysql> update user set `Insert_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Update_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Delete_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Create_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Drop_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Reload_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Shutdown_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Process_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `File_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Grant_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `References_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Index_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Alter_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Show_db_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Super_priv` ='Y',`Create_tmp_table_priv` = 'Y' where user='root'' and host='localhost';
mysql> update user set `Lock_tables_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Execute_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Repl_slave_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Repl_client_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Create_view_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Show_view_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Create_routine_priv` ='Y' where user='root' and host='localhost'';
mysql> update user set `Alter_routine_priv` ='Y' where user='root' and host='localhost';;
mysql> update user set `Create_user_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Event_priv` ='Y' where user='root' and host='localhost';
mysql> update user set `Trigger_priv` ='Y' where user='root' and host='localhost';
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
我这里有点傻。。。自己一个一个敲了一遍，可以直接用‘,’ 分割一次写完的，，，
step05
退出&重启&登陆
mysql> quit
Bye
[root@jinch ~]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL.. SUCCESS!
[root@jinch ~]# mysql -uroot -p123
step06
切换库
mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
step07
查看表信息
mysql> select * from user\G;
*************************** 1. row ***************************
Host: localhost
User: root
Password: *23AE809DDACAF96AF0FD78ED04B6A265E05AA257
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: Y
Create_tablespace_priv: N
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: NULL
password_expired: N
1 row in set (0.01 sec)
ERROR:
No query specified
权限已经基本都有了
测试一下
mysql> create database jinc;
Query OK, 1 row affected (0.00 sec)
mysql> select user,host from mysql.user;
+------+-----------+
| user | host |
+------+-----------+
| root | localhost |
+------+-----------+
1 row in set (0.00 sec)
mysql> drop database jinc;
Query OK, 0 rows affected (0.00 sec)
好了，基本的权限又回来了
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