13.1 设置更改root密码
13.2 连接mysql
13.3 mysql常用命令
13.4 mysql用户管理
13.5 常用sql语句
13.6 mysql数据库备份恢复
使用xtrabackup备份innodb引擎的数据库 innobackupex 备份 Xtrabackup 增量备份 http://zhangguangzhi.top/2017/08/23/innobackex%E5%B7%A5%E5%85%B7%E5%A4%87%E4%BB%BDmysql%E6%95%B0%E6%8D%AE/#%E4%B8%89%E3%80%81%E5%BC%80%E5%A7%8B%E6%81%A2%E5%A4%8Dmysql
相关视频
链接：http://pan.baidu.com/s/1miFpS9M 密码：86dx
链接：http://pan.baidu.com/s/1o7GXBBW 密码：ue2f
扩展
mysql5.7 root密码更改 http://www.apelearn.com/bbs/thread-7289-1-1.html
myisam 和innodb引擎对比 http://www.pureweber.com/article/myisam-vs-innodb/
mysql 配置详解： http://blog.linuxeye.com/379.html
mysql调优： http://www.aminglinux.com/bbs/thread-5758-1-1.html
同学分享的亲身mysql调优经历： http://www.apelearn.com/bbs/thread-11281-1-1.html
SQL语句教程 http://www.runoob.com/sql/sql-tutorial.html
什么是事务？事务的特性有哪些？ http://blog.csdn.net/yenange/article/details/7556094
根据binlog恢复指定时间段的数据 https://blog.csdn.net/lilongsy/article/details/74726002
mysql字符集调整 http://xjsunjie.blog.51cto.com/999372/1355013
root 是MySQL的超级管理员用户 和Linux系统的root管理员类似
同时也要区分这个root和系统的用户不是一个用户，当然也可以创建普通用户连接MySQL
默认root 的MySQL用户密码是空的，所以我们为了安全需要设置一个密码
先看MySQL有没有启动 ，如果没启动先启动起来
[root@linux-001 src]# ps aux |grep mysql
[root@linux-001 mysql]# /etc/init.d/mysqld start
Starting MySQL SUCCESS!
开始启动时候我报了个错
Starting MySQL. ERROR! The server quit without updating PID file (/data/mysql/linux-001.pid).
我就看配置文件和启动文件最终
[root@linux-001 mysql]# vi /etc/init.d/mysqld
mysqld_pid_file_path=/data/mysql/
定义后就可以正常启动了
[root@linux-001 mysql]# ls /usr/local/mysql/bin/mysql
/usr/local/mysql/bin/mysql
[root@linux-001 mysql]# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin
要想让他加到环境变量
export PATH=/usr/local/mysql/bin:$PATH
[root@mysql mysql]# mysql -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
给root用户设密码
[root@mysql mysql]# mysqladmin -uroot password '123456'
Warning: Using a password on the command line interface can be insecure.
重启
[root@mysql mysql]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL... SUCCESS!
[root@mysql mysql]# mysql -uroot 不加密码阻止进入了
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
[root@mysql mysql]# mysql -uroot -p 加-p输入密码
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
有的时候需要更改已知的mysql密码
[root@mysql mysql]# mysqladmin -uroot -p'123456' password 'Aa123456'
Warning: Using a password on the command line interface can be insecure.
[root@mysql mysql]# mysql -uroot -p 要输入新的密码Aa123456
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
在mysql的使用过程中也可能会碰到mysql密码被遗忘的情况
[root@mysql mysql]# vim /etc/my.cnf
[mysqld]
skip-grant-tables
[root@mysql mysql]# /etc/init.d/mysqld restart 重启
Shutting down MySQL.. SUCCESS!
Starting MySQL.. SUCCESS!
[root@mysql mysql]# mysql -uroot 不用密码也可以登录
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
//mysql的用户密码存在mysql数据库的user表中
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.01 sec)
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
mysql> desc user;
+------------------------+-----------------------------------+------+-----+-----------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------------------+-----------------------------------+------+-----+-----------------------+-------+
| Host | char(60) | NO | PRI | | |
| User | char(16) | NO | PRI | | |
| Password | char(41) | NO | | | |
| Select_priv | enum('N','Y') | NO | | N | |
| Insert_priv | enum('N','Y') | NO | | N | |
| Update_priv | enum('N','Y') | NO | | N | |
| Delete_priv | enum('N','Y') | NO | | N | |
| Create_priv | enum('N','Y') | NO | | N | |
| Drop_priv | enum('N','Y') | NO | | N | |
| Reload_priv | enum('N','Y') | NO | | N | |
| Shutdown_priv | enum('N','Y') | NO | | N | |
| Process_priv | enum('N','Y') | NO | | N | |
| File_priv | enum('N','Y') | NO | | N | |
| Grant_priv | enum('N','Y') | NO | | N | |
| References_priv | enum('N','Y') | NO | | N | |
| Index_priv | enum('N','Y') | NO | | N | |
| Alter_priv | enum('N','Y') | NO | | N | |
| Show_db_priv | enum('N','Y') | NO | | N | |
| Super_priv | enum('N','Y') | NO | | N | |
| Create_tmp_table_priv | enum('N','Y') | NO | | N | |
| Lock_tables_priv | enum('N','Y') | NO | | N | |
| Execute_priv | enum('N','Y') | NO | | N | |
| Repl_slave_priv | enum('N','Y') | NO | | N | |
| Repl_client_priv | enum('N','Y') | NO | | N | |
| Create_view_priv | enum('N','Y') | NO | | N | |
| Show_view_priv | enum('N','Y') | NO | | N | |
| Create_routine_priv | enum('N','Y') | NO | | N | |
| Alter_routine_priv | enum('N','Y') | NO | | N | |
| Create_user_priv | enum('N','Y') | NO | | N | |
| Event_priv | enum('N','Y') | NO | | N | |
| Trigger_priv | enum('N','Y') | NO | | N | |
| Create_tablespace_priv | enum('N','Y') | NO | | N | |
| ssl_type | enum('','ANY','X509','SPECIFIED') | NO | | | |
| ssl_cipher | blob | NO | | NULL | |
| x509_issuer | blob | NO | | NULL | |
| x509_subject | blob | NO | | NULL | |
| max_questions | int(11) unsigned | NO | | 0 | |
| max_updates | int(11) unsigned | NO | | 0 | |
| max_connections | int(11) unsigned | NO | | 0 | |
| max_user_connections | int(11) unsigned | NO | | 0 | |
| plugin | char(64) | YES | | mysql_native_password | |
| authentication_string | text | YES | | NULL | |
| password_expired | enum('N','Y') | NO | | N | |
+------------------------+-----------------------------------+------+-----+-----------------------+-------+
43 rows in set (0.00 sec)
mysql> select user,password from user where user='root';
+------+-------------------------------------------+
| user | password |
+------+-------------------------------------------+
| root | *4A488726AE5A0B0F0DB967998EE12D87F25C9610 |
| root | |
| root | |
| root | |
+------+-------------------------------------------+
4 rows in set (0.01 sec)
mysql> update user set password=password('123456') where user='root'; //更新密码为123456
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> exit
Bye
//删除my.conf中的skip-grant
[root@mysql mysql]# vim /etc/my.cnf
[root@mysql mysql]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL.. SUCCESS!
[root@mysql mysql]# mysql -uroot
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
[root@mysql mysql]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
mysql -uroot -p123456
mysql -uroot -p123456 -h127.0.0.1 -P3306
mysql -uroot -p123456 -S/tmp/mysql.sock
mysql -uroot -p123456 -e “show databases”
mysql主要有4种连接方式
1.mysql -uroot -p123456
[root@mysql mysql]# mysql -uroot -p'123456'
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> quit
Bye
2.mysql -uroot -p123456 -h127.0.0.1 -P3306
//ip和端口连接方式
[root@mysql mysql]# netstat -ntlup | grep :3306
tcp6 0 0 :::3306 :::* LISTEN 13870/mysqld
[root@mysql mysql]# mysql -uroot -p'123456' -h 127.0.0.1 -P 3306
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> quit
Bye
3.mysql -uroot -p123456 -S/tmp/mysql.sock
//socket方式，其实与第一种是一样的 [root@mysql mysql]# ps aux | grep mysql | grep socket
mysql 13870 0.1 44.6 1302936 450260 pts/1 Sl 14:36 0:08 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=mysql.err --pid-file=/data/mysql/mysql.pid --socket=/tmp/mysql.sock
[root@mysql mysql]# mysql -uroot -p'123456' -S '/tmp/mysql.sock'
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> quit
Bye
4.mysql -uroot -p123456 -e sql_command
//这种方式可以直接在命令行上执行sql查询，可以用在bash脚本的编写中
[root@mysql mysql]# mysql -uroot -p'123456' -e 'select user,password from mysql.user'
Warning: Using a password on the command line interface can be insecure.
+------+-------------------------------------------+
| user | password |
+------+-------------------------------------------+
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| | |
| | |
+------+-------------------------------------------+
查询库 show databases;
切换库 use mysql;
查看库里的表 show tables;
查看表里的字段 desc tb_name;
查看建表语句 show create table tb_name\G;
查看当前用户 select user();
查看当前使用的数据库 select databsase();
创建库 create database db1;
创建表 use db1; create table t1(`id` int(4), `name` char(40));
查看当前数据库版本 select version();
查看数据库状态 show status;
查看各参数 show variables; show variables like 'max_connect%';
修改参数 set global max_connect_errors=1000;
查看队列 show processlist; show full processlist;
[root@mysql mysql]# mysql -uroot -p'123456'
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 11
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.01 sec)
mysql> use mysql //切换库，切换库结尾可以不带;号
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
查看数据库的表
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)
查看表的结构
mysql> desc user;
+------------------------+-----------------------------------+------+-----+-----------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------------------+-----------------------------------+------+-----+-----------------------+-------+
| Host | char(60) | NO | PRI | | |
| User | char(16) | NO | PRI | | |
| Password | char(41) | NO | | | |
| Select_priv | enum('N','Y') | NO | | N | |
| Insert_priv | enum('N','Y') | NO | | N | |
| Update_priv | enum('N','Y') | NO | | N | |
| Delete_priv | enum('N','Y') | NO | | N | |
| Create_priv | enum('N','Y') | NO | | N | |
| Drop_priv | enum('N','Y') | NO | | N | |
| Reload_priv | enum('N','Y') | NO | | N | |
| Shutdown_priv | enum('N','Y') | NO | | N | |
| Process_priv | enum('N','Y') | NO | | N | |
| File_priv | enum('N','Y') | NO | | N | |
| Grant_priv | enum('N','Y') | NO | | N | |
| References_priv | enum('N','Y') | NO | | N | |
| Index_priv | enum('N','Y') | NO | | N | |
| Alter_priv | enum('N','Y') | NO | | N | |
| Show_db_priv | enum('N','Y') | NO | | N | |
| Super_priv | enum('N','Y') | NO | | N | |
| Create_tmp_table_priv | enum('N','Y') | NO | | N | |
| Lock_tables_priv | enum('N','Y') | NO | | N | |
| Execute_priv | enum('N','Y') | NO | | N | |
| Repl_slave_priv | enum('N','Y') | NO | | N | |
| Repl_client_priv | enum('N','Y') | NO | | N | |
| Create_view_priv | enum('N','Y') | NO | | N | |
| Show_view_priv | enum('N','Y') | NO | | N | |
| Create_routine_priv | enum('N','Y') | NO | | N | |
| Alter_routine_priv | enum('N','Y') | NO | | N | |
| Create_user_priv | enum('N','Y') | NO | | N | |
| Event_priv | enum('N','Y') | NO | | N | |
| Trigger_priv | enum('N','Y') | NO | | N | |
| Create_tablespace_priv | enum('N','Y') | NO | | N | |
| ssl_type | enum('','ANY','X509','SPECIFIED') | NO | | | |
| ssl_cipher | blob | NO | | NULL | |
| x509_issuer | blob | NO | | NULL | |
| x509_subject | blob | NO | | NULL | |
| max_questions | int(11) unsigned | NO | | 0 | |
| max_updates | int(11) unsigned | NO | | 0 | |
| max_connections | int(11) unsigned | NO | | 0 | |
| max_user_connections | int(11) unsigned | NO | | 0 | |
| plugin | char(64) | YES | | mysql_native_password | |
| authentication_string | text | YES | | NULL | |
| password_expired | enum('N','Y') | NO | | N | |
+------------------------+-----------------------------------+------+-----+-----------------------+-------+
43 rows in set (0.01 sec)
创建数据库
mysql> create database dbtest;
Query OK, 1 row affected (0.00 sec)
创建在数据库中创建表
//注意是反引号 一定记得是反引号
mysql> create table tb1(`id` int(4),`name` char(40));
Query OK, 0 rows affected (0.03 sec)
查看建表语句
// \G代表横向显示 //如需建表时设定字符集，可以在create table语句后加上‘ENGINE=InnoDB DEFAULT CHARSET=utf8’，utf-8替换为相应的字符集
mysql> show create table tb1\G
*************************** 1. row ***************************
Table: tb1
Create Table: CREATE TABLE `tb1` (
`id` int(4) DEFAULT NULL,
`name` char(40) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
1 row in set (0.00 sec)
查看当前用户
mysql> select user();
+----------------+
| user() |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.00 sec)
查看当前数据库
Database changed mysql> select database(); +------------+ | database() | +------------+ | mysql | +------------+ 1 row in set (0.01 sec)
查看数据库版本
mysql> select version(); +-----------+ | version() | +-----------+ | 5.6.36 | +-----------+ 1 row in set (0.00 sec)
查看数据库状态
mysql> show status;
查看数据库参数
mysql> show variables\G
查看具体的数据库参数
//%号和like结合使用，%是通配符
mysql> show variables like 'max_connect%';
+--------------------+-------+
| Variable_name | Value |
+--------------------+-------+
| max_connect_errors | 100 |
| max_connections | 151 |
+--------------------+-------+
2 rows in set (0.00 sec)
临时设定参数
mysql> set global max_connect_errors=1000; Query OK, 0 rows affected (0.02 sec) mysql> show variables like 'max_connect%'; +--------------------+-------+ | Variable_name | Value | +--------------------+-------+ | max_connect_errors | 1000 | | max_connections | 151 | +--------------------+-------+ 2 rows in set (0.00 sec)
//退出后重启mysql服务，参数失效 mysql> quit Bye
[root@mysql mysql]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
[root@mysql mysql]# mysql -uroot -p'123456'
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show variables like 'max_connect%';
+--------------------+-------+
| Variable_name | Value |
+--------------------+-------+
| max_connect_errors | 100 |
| max_connections | 151 |
+--------------------+-------+
2 rows in set (0.00 sec)
永久修改参数值
root@mysql mysql]# vim /etc/my.cnf
//在[mysqld]下添加相应的参数 max_connect_errors=1000
[root@mysql mysql]# /etc/init.d/mysqld restart
[root@mysql mysql]# mysql -uroot -p'123456'
mysql> show variables like 'max_connect%';
+--------------------+-------+
| Variable_name | Value |
+--------------------+-------+
| max_connect_errors | 1000 |
| max_connections | 151 |
+--------------------+-------+
2 rows in set (0.00 sec)
grant all on *.* to 'user1' identified by 'passwd';
grant SELECT,UPDATE,INSERT on db1.* to 'user2'@'192.168.133.1' identified by 'passwd';
grant all on db1.* to 'user3'@'%' identified by 'passwd';
show grants;
show grants for [email protected];
mysql安装完以后默认只有一个root管理用户，最高权限。不利于安全管理。需要根据需要创建不同用户。
//创建用户并授予全部权限
[root@mysql mysql]# mysql -uroot -p'123456'
mysql> grant all on *.* to 'user01' identified by '123456';
Query OK, 0 rows affected (0.00 sec)
[root@mysql mysql]# mysql -uuser01 -p
Enter password:
ERROR 1045 (28000): Access denied for user 'user01'@'localhost' (using password: YES)
//系统中存在空帐户导致，删除多余空帐户
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
mysql> select User,Password from user;
+--------+-------------------------------------------+
| User | Password |
+--------+-------------------------------------------+
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| | |
| | |
| user1 | *59C70DA2F3E3A5BDF46B68F5C8B8F25762BCCEF0 |
| user2 | *59C70DA2F3E3A5BDF46B68F5C8B8F25762BCCEF0 |
| user3 | *59C70DA2F3E3A5BDF46B68F5C8B8F25762BCCEF0 |
| user01 | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
+--------+-------------------------------------------+
10 rows in set (0.00 sec)
mysql> delete from user where user='';
Query OK, 2 rows affected (0.00 sec)
//该句一定要执行 mysql> FLUSH PRIVILEGES; mysql> exit
[root@mysql mysql]# mysql -u user01 -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 15
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
//授予部分权限 //授予user08用户mysql数据库，user表查询，更新和插入的权限
[root@mysql mysql]# mysql -uroot -p'123456'
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 16
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> grant SELECT,UPDATE,INSERT on mysql.user to 'user08' identified by '123456';
Query OK, 0 rows affected (0.01 sec)
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
mysql> show database;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'database' at line 1
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| dbtest |
| mysql |
| performance_schema |
| test |
+--------------------+
5 rows in set (0.00 sec)
//因为对user表有权限，其他表都看不到
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 |
| tb1 |
| time_zone |
| time_zone_leap_second |
| time_zone_name |
| time_zone_transition |
| time_zone_transition_type |
| user |
+---------------------------+
29 rows in set (0.00 sec)
//限制可以从哪个ip登录访问 //@后的部分可以指定可以访问的来源，%表示任意地址 //注意@前后的引号
mysql> grant all on *.* to 'user09'@'127.0.0.1' identified by '123456';
Query OK, 0 rows affected (0.00 sec)
mysql> exit
Bye
[root@mysql mysql]# mysql -uuser09 -p -h127.0.0.1
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 17
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> quit
Bye
[root@mysql mysql]# mysql -uuser09 -p -hlocalhost
Enter password:
ERROR 1045 (28000): Access denied for user 'user09'@'localhost' (using password: YES)
[root@mysql mysql]# mysql -uuser09 -h192.168.76.135
ERROR 1045 (28000): Access denied for user 'user09'@'192.168.76.135' (using password: NO)
[root@mysql mysql]# mysql -uroot -p'123456'
mysql> show grants for [email protected];
+------------------------------------------------------------------------------------------------------------------------+
| Grants for [email protected] |
+------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'user09'@'127.0.0.1' IDENTIFIED BY PASSWORD '*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9' |
+------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
mysql> GRANT ALL PRIVILEGES ON *.* TO 'user09'@'%' IDENTIFIED BY PASSWORD '*6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9';
Query OK, 0 rows affected (0.00 sec)
mysql>
[root@mysql mysql]# mysql -uuser09 -p123456 -h127.0.0.1
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 22
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
[root@mysql mysql]# mysql -uuser09 -p123456 -hlocalhost;
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 23
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
[root@mysql mysql]# mysql -uuser09 -p123456 -h192.168.76.135
Warning: Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 24
Server version: 5.6.39 MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show grants;
+----------------------------------------------------------------------------------------------------------------+
| Grants for user09@% |
select count(*) from mysql.user;
select * from mysql.db;
select db from mysql.db;
select db,user from mysql.db;
select * from mysql.db where host like '192.168.%';
insert into db1.t1 values (1, 'abc');
update db1.t1 set name='aaa' where id=1;
truncate table db1.t1;
drop table db1.t1;
drop database db1;