Centos6.5安装MySql
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安装MySql方法有多种方式,如下图:
序号 | mysql安装方式 | 特点说明 |
1 | yum/rpm包安装 | 特点是简单、速度快,但是没法定制安装,入门新手常用这种方式 |
2 | 二进制安装 | 解压软件,简单配置后就可以使用,不用安装,速度较快,专业DNA喜欢这种方式。软件名如:mysql-5.5.32-linux2.6_x86_64.tar.gz |
3 | 源码编译安装 | 特点是可以定制安装,但是安装时间长,例如:字符集安装路径,等等。软件名称如:mysql-5.5.32.tar.gz |
4 | 源码软件结合yum/rpm安装 | 把源码软件制作成符合要求的rpm,放到yum仓库里,然后通过yum来安装。结合了上面1和3的优点,即安装快速,可做生意定制参数,但是安装者也需要具有更深能力 |
下面演示yum和编译安装:
一、yum安装
1、关闭iptables
[[email protected] ~]# /etc/init.d/iptables stop iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Flushing firewall rules: [ OK ] iptables: Unloading modules: [ OK ] [[email protected] ~]# /etc/init.d/iptables stop [[email protected] ~]# chkconfig iptables off
2、关闭SELinux
[[email protected] ~]# sed -i ‘s/SELINUX=enforcing/SELINUX=disabled/‘ /etc/selinux/config [[email protected] ~]# setenforce usage: setenforce [ Enforcing | Permissive | 1 | 0 ] [[email protected] ~]# setenforce 0 [[email protected] ~]# getenforce Permissive
3、安装mysql
[[email protected] ~]# yum -y install mysql mysql-server mysql-devel Loaded plugins: fastestmirror, security base | 3.7 kB 00:00 base/primary_db | 4.6 MB 00:30 extras | 3.4 kB 00:00 extras/primary_db | 37 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 5.2 MB 00:43 ...略 [[email protected] ~]# chkconfig mysqld on #开机启动 [[email protected] ~]# chkconfig --list | grep mysqld #查询是否开机启动 mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off [[email protected] ~]# service mysqld start #启动服务 Starting mysqld: [ OK ] [[email protected] ~]# mysql #进入mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.1.73 Source distribution Copyright (c) 2000, 2013, 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> CREATE DATABASE wordpress; #创建一个名称为wordpress的数据库 Query OK, 1 row affected (0.00 sec) mysql> select user,host,password from mysql.user; #查询用户等信息 +------+-----------+----------+ | user | host | password | +------+-----------+----------+ | root | localhost | | | root | mysql | | | root | 127.0.0.1 | | | | localhost | | | | mysql | | +------+-----------+----------+ 5 rows in set (0.00 sec) mysql> set password for [email protected]=password(‘root‘); #查询用户的密码,都为空,用上面的命令设置root的密码为root Query OK, 0 rows affected (0.00 sec) mysql> select user,host,password from mysql.user; #再次查询发现password下面已有密码信息 +------+-----------+-------------------------------------------+ | user | host | password | +------+-----------+-------------------------------------------+ | root | localhost | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B | | root | mysql | | | root | 127.0.0.1 | | | | localhost | | | | mysql | | +------+-----------+-------------------------------------------+ 5 rows in set (0.00 sec) mysql> exit Bye [[email protected] ~]# [[email protected] ~]# mysql -u root -p #用新密码登录 Enter password: #填写密码 Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 6 Server version: 5.1.73 Source distribution ...略 mysql> exit [[email protected] ~]# [[email protected] ~]# cat /etc/my.cnf #/etc/my.cnf是mysql的主配置文件 [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid [[email protected] ~]# [[email protected] ~]# ls -l /var/lib/mysql/ #mysql数据库的数据库文件存放位置 total 20492 -rw-rw----. 1 mysql mysql 10485760 May 16 22:30 ibdata1 -rw-rw----. 1 mysql mysql 5242880 May 16 22:30 ib_logfile0 -rw-rw----. 1 mysql mysql 5242880 May 16 22:30 ib_logfile1 drwx------. 2 mysql mysql 4096 May 16 22:30 mysql srwxrwxrwx. 1 mysql mysql 0 May 16 22:30 mysql.sock drwx------. 2 mysql mysql 4096 May 16 22:30 test drwx------. 2 mysql mysql 4096 May 16 22:33 wordpress [[email protected] ~]# [[email protected] ~]# ls /var/log/ #日志文件存放位置 anaconda.ifcfg.log anaconda.yum.log dmesg mysqld.log tallylog anaconda.log audit dmesg.old ntpstats wtmp anaconda.program.log boot.log dracut.log prelink yum.log anaconda.storage.log btmp lastlog sa anaconda.syslog ConsoleKit maillog secure anaconda.xlog cron messages spooler [[email protected] ~]# [[email protected] ~]# netstat -lntup|grep 3306 #查看mysql端口侦听状态 tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 2053/mysqld [[email protected] ~]#
基本命令
show databases; //查看系统已存在的数据库
use databasesname; //选择需要使用的数据库
drop database databasename; //删除选定的数据库
exit //退出数据库的连接
create database test01; //建立名为test的数据库
show tables; // 列出当前数据库下的表
其他基本的增删改查使用标准SQL即可
开放远程登录权限
GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘root‘ WITH GRANT OPTION;
FLUSH PRIVILEGES;
参考:
老男孩
http://blog.csdn.net/xxd851116/article/details/22947891
http://www.xxlinux.com/article/development/database/20121106/18532.html
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