安裝MySql方法有多種方式，如下圖：
| 序號 | MySql安裝方式 | 特點說明 |
| 1 | yum/rpm包安裝 | 特點是簡單、速度快，但是沒法定制安裝，入門新手常用這種方式 |
| 2 | 二進制安裝 | 解壓軟件，簡單配置后就可以使用，不用安裝，速度較快，專業DNA喜歡這種方式。軟件名如：mysql-5.5.32-linux2.6_x86_64.tar.gz |
| 3 | 源碼編譯安裝 | 特點是可以定制安裝，但是安裝時間長，例如：字符集安裝路徑，等等。軟件名稱如：mysql-5.5.32.tar.gz |
| 4 | 源碼軟件結合yum/rpm安裝 | 把源碼軟件制作成符合要求的rpm，放到yum倉庫里，然后通過yum來安裝。結合了上面1和3的優點，即安裝快速，可做生意定制參數，但是安裝者也需要具有更深能力 |
下面演示yum和編譯安裝：
一、yum安裝
1、關閉iptables
[root@mysql ~]# /etc/init.d/iptables stop iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Flushing firewall rules: [ OK ] iptables: Unloading modules: [ OK ] [root@mysql ~]# /etc/init.d/iptables stop [root@mysql ~]# chkconfig iptables off
2、關閉SELinux
[root@mysql ~]# sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config [root@mysql ~]# setenforce usage: setenforce [ Enforcing | Permissive | 1 | 0 ] [root@mysql ~]# setenforce 0 [root@mysql ~]# getenforce Permissive
3、安裝mysql
[root@mysql ~]# 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
[root@mysql ~]# chkconfig mysqld on
#開機啟動
[root@mysql ~]# chkconfig --list | grep mysqld
#查詢是否開機啟動
mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off
[root@mysql ~]# service mysqld start
#啟動服務
Starting mysqld: [ OK ]
[root@mysql ~]# mysql
#進入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;
#創建一個名稱為wordpress的數據庫
Query OK, 1 row affected (0.00 sec)
mysql> select user,host,password from mysql.user;
#查詢用戶等信息
+------+-----------+----------+
| 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 root@localhost=password('root');
#查詢用戶的密碼，都為空，用上面的命令設置root的密碼為root
Query OK, 0 rows affected (0.00 sec)
mysql> select user,host,password from mysql.user;
#再次查詢發現password下面已有密碼信息
+------+-----------+-------------------------------------------+
| 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
[root@mysql ~]#
[root@mysql ~]# mysql -u root -p
#用新密碼登錄
Enter password:
#填寫密碼
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
[root@mysql ~]#
[root@mysql ~]# 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
[root@mysql ~]#
[root@mysql ~]# ls -l /var/lib/mysql/
#mysql數據庫的數據庫文件存放位置
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
[root@mysql ~]#
[root@mysql ~]# 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
[root@mysql ~]#
[root@mysql ~]# netstat -lntup|grep 3306
#查看mysql端口偵聽狀態
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 2053/mysqld
[root@mysql ~]#MySql密碼忘記后重新設置：
#多次輸入密碼均不對 [root@bogon ~]# mysql -u root -p Enter password: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) [root@bogon ~]# mysql -u root -p Enter password: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) [root@bogon ~]# /application/mysql//bin/mysqladmin -u root password '789@!@#' #把root的mysql登錄密碼設置為789@!@# [root@bogon ~]# mysql -u root -p #輸入密碼789@!@#，進入mysql Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 6 Server version: 5.5.32 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>
基本命令
show databases; //查看系統已存在的數據庫
use databasesname; //選擇需要使用的數據庫
drop database databasename; //刪除選定的數據庫
exit //退出數據庫的連接
create database test01; //建立名為test的數據庫
show tables; // 列出當前數據庫下的表
其他基本的增刪改查使用標準SQL即可
開放遠程登錄權限
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;
FLUSH PRIVILEGES;
參考：
老男孩
http://blog.csdn.net/xxd851116/article/details/22947891
http://www.xxlinux.com/article/development/database/20121106/18532.html
免責聲明：本站發布的內容（圖片、視頻和文字）以原創、轉載和分享為主，文章觀點不代表本網站立場，如果涉及侵權請聯系站長郵箱：is@yisu.com進行舉報，并提供相關證據，一經查實，將立刻刪除涉嫌侵權內容。
