centos 7.0 安装mysql

1.卸载之前的mysql
列出所有被安装的mysql

rpm package **rpm -qa | grep mariadb

卸载

rpm -e --nodeps mariadb-libs-5.5.37-1.el7_0.x86_64

2.在/etc/下面新建my.cnf

3.分别安装server devel client

rpm -ivh MySQL-server-advanced-5.6.22-1.el7.x86_64.rpm 
rpm -ivh MySQL-devel-advanced-5.6.22-1.el7.x86_64.rpm 
rpm -ivh MySQL-client-advanced-5.6.22-1.el7.x86_64.rpm 

下载地址:mysql.zip
密码:u12s

4.安装perl

yum install -y perl-Module-Install.noarch

5.初始化数据库

 /usr/bin/mysql_install_db 

6.启动mysql服务

service mysql start

7.设置密码

mysql -uroot –p

回车

SET PASSWORD = PASSWORD('123456');

8.允许远程登录

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

9.设置开机自启动

chkconfig mysql on
chkconfig --list | grep mysql

10.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

10.修改my.cnf配置文件

[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
#(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
#(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%';