mysql使用報錯1142（42000）解決方法
阿新 • • 發佈：2018-10-31
今天在學習mysql的時候，一頓蜜汁操作，再次使用mysql的時候發現，不管用啥子命令，都出現了一個報錯
mysql> select user,password from mysql.user;
ERROR 1142 (42000): SELECT command denied to user ‘root’@‘localhost’ for table ‘user’
看了一下報錯資訊，許可權不夠。。。那就是沒有許可權了，so，給他許可權就好了
step01
退出資料庫並且關閉mysql服務
mysql> quit
Bye
[[email protected] step02
安全模式啟動mysql，root使用者登入
[[email protected] ~]# mysqld_safe --skip-grant-tables &
[[email protected] ~]# mysql -uroot -p123 mysql
step03
切換資料庫&查看錶資訊中的root使用者的localhost許可權
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
這裡發現全部都是N ，表示root使用者本地登陸沒有許可權
step04
修改root使用者的localhost許可權
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)
我這裡有點傻。。。自己一個一個敲了一遍，可以直接用‘,’ 分割一次寫完的，，，
step05
退出&重啟&登陸
mysql> quit
Bye
[[email protected] ~]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL.. SUCCESS!
[[email protected] ~]# mysql -uroot -p123
step06
切換庫
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
查看錶資訊
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
許可權已經基本都有了
測試一下
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)