yum remove mysql mysql-server mysql-libs compat-mysql51

rm -rf /var/lib/mysql

rm /etc/my.cnf

查看是否還有mysql軟件：

rpm -qa|grep mysql

有的話繼續(xù)刪除

RPM方式安裝MySQL5.6

a.?檢查MySQL及相關(guān)RPM包，是否安裝，如果有安裝，則移除(rpm?–e?名稱)

1

[root@localhost ~]# rpm -qa | grep -i mysql

2

mysql-libs-5.1.66-2.el6_3.x86_64

3

[root@localhost ~]# yum -y remove mysql-libs*

b. 下載Linux對應(yīng)的RPM包，如：CentOS6.4_64對應(yīng)的RPM包，如下：

1

[root@localhost rpm]# ll

2

total 74364

3

-rw-r--r--. 1 root root 18442536 Dec 11 20:19 MySQL-client-5.6.15-1.el6.x86_64.rpm

4

-rw-r--r--. 1 root root? 3340660 Dec 11 20:06 MySQL-devel-5.6.15-1.el6.x86_64.rpm

5

-rw-r--r--. 1 root root 54360600 Dec 11 20:03 MySQL-server-5.6.15-1.el6.x86_64.rpm

c.?安裝MySQL

1

[root@localhost rpm]# rpm -ivh MySQL-server-5.6.15-1.el6.x86_64.rpm

2

[root@localhost rpm]# rpm -ivh MySQL-devel-5.6.15-1.el6.x86_64.rpm

3

[root@localhost rpm]# rpm -ivh MySQL-client-5.6.15-1.el6.x86_64.rpm

4

#修改配置文件位置

5

[root@localhost rpm]# cp /usr/share/mysql/my-default.cnf /etc/my.cnf

d.?初始化MySQL及設(shè)置密碼

1

[root@localhost rpm]# /usr/bin/mysql_install_db

2

[root@localhost rpm]# service mysql start

3

[root@localhost rpm]# cat /root/.mysql_secret? #查看root賬號密碼

4

# The random password set for the root user at Wed Dec 11 23:32:50 2013 (local time): qKTaFZnl

5

[root@localhost ~]# mysql -uroot –pqKTaFZnl

6

mysql> SET PASSWORD = PASSWORD('123456');#設(shè)置密碼為123456

7

mysql>exit

8

[root@localhost ~]# mysql -uroot -p123456

e.?允許遠(yuǎn)程登陸

01

mysql> use mysql;

02

mysql>select?host,user,password from user;

03

+-----------------------+------+-------------------------------------------+

04

| host????????????????? | user | password????????????????????????????????? |

05

+-----------------------+------+-------------------------------------------+

06

| localhost???????????? | root | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 |

07

| localhost.localdomain | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |

08

| 127.0.0.1???????????? | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |

09

| ::1?????????????????? | root | *1237E2CE819C427B0D8174456DD83C47480D37E8 |

10

+-----------------------+------+-------------------------------------------+

11

12

mysql> update userset?password=password('123456') where user='root';

13

mysql> update userset?host='%'?where user='root'?and host='localhost';

14

mysql> flush privileges;

15

mysql>exit

f.?設(shè)置開機自啟動

1

[root@localhost ~]# chkconfig mysql on

2

[root@localhost ~]# chkconfig --list | grep mysql

3

mysql?????????? 0:off?? 1:off?? 2:on??? 3:on??? 4:on??? 5:on??? 6:off

g.?MySQL的默認(rèn)安裝位置

1

/var/lib/mysql/#數(shù)據(jù)庫目錄

2

/usr/share/mysql#配置文件目錄

3

/usr/bin#相關(guān)命令目錄

4

/etc/init.d/mysql#啟動腳本

修改字符集和數(shù)據(jù)存儲路徑

配置/etc/my.cnf文件,修改數(shù)據(jù)存放路徑、mysql.sock路徑以及默認(rèn)編碼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

#(注意linux下mysql安裝完后是默認(rèn)：表名區(qū)分大小寫，列名不區(qū)分大小寫；?0：區(qū)分大小寫，1：不區(qū)分大小寫)

lower_case_table_names=1

#(設(shè)置最大連接數(shù)，默認(rèn)為?151，MySQL服務(wù)器允許的最大連接數(shù)16384;?)

max_connections=1000

[mysql]

default-character-set=utf8

查看字符集

show variables like '%collation%';

show variables like '%char%';

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