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RPM 方式安装MySQL

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RPM包的下载地址:https://cdn.mysql.com//Downloads/MySQL-5.6/MySQL-server-5.6.37-1.el6.x86_64.rpm

1. 检查MySQL及相关RPM包,是否安装,如果有安装,则移除(rpm –e 名称)

[root@localhost ~]# rpm -qa | grep -i mysql
mysql-libs-5.1.66-2.el6_3.x86_64
[root@localhost ~]# yum -y remove mysql-libs*

2. 下载Linux对应的RPM包,如:CentOS6.4_64对应的RPM包,如下:

[root@localhost rpm]# ll
total 74364
-rw-r--r--. 1 root root 18442536 Dec 11 20:19 MySQL-client-5.6.15-1.el6.x86_64.rpm
-rw-r--r--. 1 root root  3340660 Dec 11 20:06 MySQL-devel-5.6.15-1.el6.x86_64.rpm
-rw-r--r--. 1 root root 54360600 Dec 11 20:03 MySQL-server-5.6.15-1.el6.x86_64.rpm

3. 安装MySQL

[root@localhost rpm]# rpm -ivh MySQL-server-5.6.15-1.el6.x86_64.rpm
[root@localhost rpm]# rpm -ivh MySQL-devel-5.6.15-1.el6.x86_64.rpm
[root@localhost rpm]# rpm -ivh MySQL-client-5.6.15-1.el6.x86_64.rpm
#修改配置文件位置
[root@localhost rpm]# cp /usr/share/mysql/my-default.cnf /etc/my.cnf

4. 初始化MySQL及设置密码

[root@localhost rpm]# /usr/bin/mysql_install_db
[root@localhost rpm]# service mysql start
[root@localhost rpm]# cat /root/.mysql_secret  #查看root账号密码
# The random password set for the root user at Wed Dec 11 23:32:50 2013 (local time): qKTaFZnl
[root@localhost ~]# mysql -uroot –pqKTaFZnl
mysql> SET PASSWORD = PASSWORD('123456');    #设置密码为123456
mysql> exit
[root@localhost ~]# mysql -uroot -p123456

5. 允许远程登陆

mysql> use mysql;
mysql> select host,user,password from user;
+-----------------------+------+-------------------------------------------+
| host                  | user | password                                  |
+-----------------------+------+-------------------------------------------+
| localhost             | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |
| localhost.localdomain | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |
| 127.0.0.1             | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |
| ::1                   | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |
+-----------------------+------+-------------------------------------------+

mysql> update user set password=password('123456') where user='root';
mysql> update user set host='%' where user='root' and host='localhost';
mysql> flush privileges;
mysql> exit

6. 设置开机自启动

[root@localhost ~]# chkconfig mysql on
[root@localhost ~]# chkconfig --list | grep mysql
mysql           0:off   1:off   2:on    3:on    4:on    5:on    6:off

7. MySQL的默认安装位置

/var/lib/mysql/               #数据库目录
/usr/share/mysql              #配置文件目录
/usr/bin                      #相关命令目录
/etc/init.d/mysql             #启动脚本

8.修改字符集和数据存储路径

配置/etc/my.cnf文件,修改数据存放路径、mysql.sock路径以及默认编码utf-8.

[client]  
password        = 123456  
port            = 3306  
default-character-set=utf8  

[mysqld]  
port            = 3306  
character_set_server=utf8  
character_set_client=utf8  
collation-server=utf8_general_ci

9. (注意linux下mysql安装完后是默认:表名区分大小写,列名不区分大小写; 0:区分大小写,1:不区分大小写)

lower_case_table_names=1

10. (设置最大连接数,默认为 151,MySQL服务器允许的最大连接数16384; )

max_connections=1000  
[mysql]  
default-character-set = utf8

11.查看字符集

show variables like '%collation%';
show variables like '%char%';

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