liunx mysql 安装配置

----------------------------装mysql

yum install mysql-server

 

----------------------------启动mysql

service mysql start

 

----------------------------进入mysql

mysql

 

-----------------------------设置数据库初始密码为111111

chkconfig mysqld on

mysqladmin -u root password 111111

 

 

--------------------------------------修改密码----

退出mysql执行

 

mysqladmin -uroot -p111111 password 123456

以上命令把刚刚设置的root用户的密码111111修改为123456

 

 ------------------------------mysql装好后，客户端连接需要做的设置

 

-------------------------让root可以远程访问

进入mysql

 

GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY '111111' WITH GRANT OPTION;

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '111111' WITH GRANT OPTION;

 

#dev-ctc-vmanager 为计算机名

GRANT ALL PRIVILEGES ON *.* TO 'root'@'dev-ctc-vmanager' IDENTIFIED BY '111111' WITH GRANT OPTION;

FLUSH PRIVILEGES; 

 

#GRANT ALL PRIVILEGES ON *.* TO 'iov_user'@'localhost' IDENTIFIED BY '1qaz2wsx' WITH GRANT OPTION;

#GRANT ALL PRIVILEGES ON *.* TO 'iov_user'@'%' IDENTIFIED BY '1qaz2wsx' WITH GRANT OPTION;

 

------------------修改/etc/my.cnf 配置： 修改默认字符集-------------------

 

 

[client]

default-character-set=utf8

 

[mysqld]

lower_case_table_names=1

default-character-set=utf8

character-set-server=utf8

default-storage-engine=InnoDB

 

------------------------------------

打开/etc/mysql/my.cnf

检查 bind-address 为

bind-address            = 0.0.0.0

 

 ------------------修改MySql默认存储引擎为InnoDB

/etc/my.cnf中 [mysqld] 下增加 default-storage-engine=InnoDB

 

 

---------------------Linux修改MySql默认字符集

/etc/my.cnf中 [mysqld] 下增加 

default-character-set=utf8

character-set-server=utf8

-----------------------------------------------

启动mysql

service mysqld start

 

关闭mysql

service mysqld stop

 

连接mysql（192.168.1.99）

mysql -u root -p 回车

输入密码 111111

 

 

-------------- 数据库操作

create database luhp;

use luhp;

 

如果想更改已经存在表和字符列的字符集，要用如下

mysql> alter table t2 convert to character set latin1;

 

 

 

--------------------------备份数据库

退出mysql执行

 

mysqldump -u root -p luhp > luhp.sql

提示输入密码，即吧luhp库备份到当前目录的luhp.sql文件中

 

-------------------------导入备份的数据

退出mysql执行

 

mysql -u root -p bak < luhp.sql

提示输入密码，把当前目录luhp.sql中的表结构导入到数据库bak中

 

 

 ================查询sql导入文件

mysql -h127.0.0.1 -uroot -p111111 -P3306 -e "select * from core.t_user where user_id in (select a1.user_id from core.t_user a1,core1.t_user  a2 where a1.user_id = a2.user_id) and status =1 " > /home/lushang/trasformFromYd360/dup_compare/lushang_user_act.sql

 

导入的文件赋予全部权限