MySql5.6 安装、维护

原创

a3z2008 2014-01-24 11:30:27 博主文章分类：MySql ©著作权

文章标签 mysql 文章分类 数据库

©著作权归作者所有：来自51CTO博客作者a3z2008的原创作品，请联系作者获取转载授权，否则将追究法律责任

准备环境：

Redhat 5系统、MySql5.6rpm包

首先上传mysql至服务器

1、解压缩MySql

[root@shiyue5u01]# tar -xvf MySQL-5.6.2_m5-1.rhel5.i386.tar

MySQL-client-5.6.2_m5-1.rhel5.i386.rpm

MySQL-devel-5.6.2_m5-1.rhel5.i386.rpm

MySQL-embedded-5.6.2_m5-1.rhel5.i386.rpm

MySQL-server-5.6.2_m5-1.rhel5.i386.rpm

MySQL-shared-5.6.2_m5-1.rhel5.i386.rpm

MySQL-test-5.6.2_m5-1.rhel5.i386.rpm

2、安装MySQL-server包

[root@shiyue5u01]# rpm -ivh MySQL-server-5.6.2_m5-1.rhel5.i386.rpm

error:Failed dependencies:

MySQL conflicts with mysql-5.0.45-7.el5.i386

MySQL-serverconflicts with mysql-server-5.0.45-7.el5.i386

（安装失败，由于系统先前安装有mysql,把它卸载掉！再安装）

[root@shiyue5u01]# rpm -e mysql-5.0.45-7.el5.i386 –nodeps

[root@shiyue5u01]# rpm -e mysql-server-5.0.45-7.el5.i386 –nodeps

[root@shiyue5u01]# rpm -ivh MySQL-server-5.6.2_m5-1.rhel5.i386.rpm

Preparing… ########################################### [100%]

1:MySQL-server ###########################################[100%]

[root@shiyue5u01]# rpm -ivh MySQL-client-5.6.2_m5-1.rhel5.i386.rpm

Preparing… ########################################### [100%]

1:MySQL-client ########################################### [100%]

3、启动mysql并设置登录密码

[root@shiyue5u01]# /etc/init.d/mysql start

StartingMySQL……[ OK ]

[root@shiyue5 u01]# mysqladmin -u rootpassword “123456″

4、登录mysql并创建数据库

[root@shiyue5~]# mysql -u root -p

Enterpassword:

Welcometo the MySQL monitor. Commands end with; or g.

YourMySQL connection id is 5

Serverversion: 5.6.2-m5 MySQL Community Server (GPL)

Oracleis 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 shiyue;

QueryOK, 1 row affected (0.01 sec)

5、配置客户端连接

mysql>use mysql;

Readingtable information for completion of table and column names

Youcan turn off this feature to get a quicker startup with -A

Database changed

mysql>grant all on *.* to root@”%” identified by “123456″;

QueryOK, 0 rows affected (0.00 sec)

通过对1042问题代码的查询，得出编辑/etc/my.cnf文件，在[mysqld]内添加一行skip-name-resolve

在/etc/目录下如没有my.cnf配置文件，则请到/usr/share/mysql/下找到*.cnf文件，拷贝其中的一个到/etc/并改名为my.cnf

[root@shiyue5~]# cp /usr/share/mysql/my-medium.cnf /etc/my.cnf

[root@shiyue5~]# vi /etc/my.cnf

#Example MySQL config file for medium systems.

# Thisis for a system with little memory (32M – 64M) where MySQL plays

# animportant part, or systems up to 128M where MySQL is used together with

#other programs (such as a web server)

#MySQL programs look for option files in a set of

#locations which depend on the deployment platform.

# Youcan copy this option file to one of those

#locations. For information about these locations, see:

#http://dev.mysql.com/doc/mysql/en/option-files.html

# Inthis file, you can use all long options that a program supports.

# Ifyou want to know which options a program supports, run the program

# withthe “–help” option.

# Thefollowing options will be passed to all MySQL clients

[client]

#password = your_password

port = 3306

socket = /var/lib/mysql/mysql.sock

# Herefollows entries for some specific programs

# TheMySQL server

[mysqld]

port = 3306

socket = /var/lib/mysql/mysql.sock

skip-external-locking

key_buffer_size= 16M

max_allowed_packet= 1M

table_open_cache= 64

sort_buffer_size= 512K

net_buffer_length= 8K

read_buffer_size= 256K

read_rnd_buffer_size= 512K

myisam_sort_buffer_size= 8M

skip-name-resolve

#Don’t listen on a TCP/IP port at all. This can be a security enhancement,

# ifall processes that need to connect to mysqld run on the same host.

# Allinteraction with mysqld must be made via Unix sockets or named pipes.

“/etc/my.cnf”145L, 4700C written

6、重启mysql

[root@shiyue5~]# /etc/init.d/mysql restart

Shuttingdown MySQL…[ OK ]

Starting MySQL…[ OK ]

7、 mysql数据库的日常维护管理

mysql>show databases;（显示数据库）

+——————–+

|Database |

+——————–+

|information_schema |

|mysql |

|performance_schema |

|shiyue |

|test |

+——————–+

5 rows in set (0.00 sec)

mysql>create database ddimcn;（创建数据库）

QueryOK, 1 row affected (0.01 sec)

mysql>

mysql>use ddimcn （打开库）

Databasechanged

mysql>show tables; （显示表）

Emptyset (0.00 sec)

mysql>create table test (id int(10),name varchar(10)); （创建表）

QueryOK, 0 rows affected (0.14 sec)

mysql>show tables; （显示表）

+——————+

|Tables_in_ddimcn |

+——————+

|test |

+——————+

1row in set (0.01 sec)

mysql>describe test; （显示表结构）

+——-+————-+——+—–+———+——-+

+——-+————-+——+—–+———+——-+

|id | int(10) | YES | | NULL | |

+——-+————-+——+—–+———+——-+

2rows in set (0.17 sec)

mysql> insert into test values(1,’zhangsan’); 插入数据

QueryOK, 1 row affected (0.07 sec)

mysql>insert into test values (2,’lisi’);

QueryOK, 1 row affected (0.03 sec)

mysql>insert into test values (3,’wangwu’);

QueryOK, 1 row affected (0.00 sec)

mysql>select * from test; 查询表中数据

+——+———-+

|id | name |

+——+———-+

| 1 | zhangsan |

| 2 | lisi |

| 3 | wangwu |

+——+———-+

3rows in set (0.00 sec)

mysql>update test set name=’york’ where id=1; 更新数据

QueryOK, 1 row affected (0.07 sec)

Rowsmatched: 1 Changed: 1 Warnings: 0

mysql>select * from test;

+——+——–+

|id | name |

+——+——–+

| 1 | york |

| 2 | lisi |

| 3 | wangwu |

+——+——–+

3rows in set (0.00 sec)

8、增加mysql用户

格式：grantselect on 数据库.* to 用户名@登录主机 identified by “密码”

例1、增加一个用户user_1密码为123，让他可以在任何主机上登录，并对所有数据库有查询、插入、修改、删除的权限。首先用以root用户连入MySQL，然后键入以下命令：

mysql>grantselect,insert,update,delete on *.* to user_1@”%” Identified by”123″;

例1增加的用户是十分危险的，如果知道了user_1的密码，那么他就可以在网上的任何一台电脑上登录你的MySQL数据库并对你的数据为所欲为了，解决办法见例2。

例2、增加一个用户user_2密码为123,让此用户只可以在localhost上登录，并可以对数据库aaa进行查询、插入、修改、删除的操作（localhost指本地主机，即MySQL数据库所在的那台主机），这样用户即使用知道user_2的密码，他也无法从网上直接访问数据库，只能通过 MYSQL主机来操作aaa库。

mysql>grant select,insert,update,delete on aaa.* to user_2@localhostidentified by “123″;

9、备份与恢复

[root@shiyue5 ~]# cd/var/lib/mysql/

[root@shiyue5 mysql]# ll

total 28776

-rw-rw—- 1 mysqlmysql 56 Aug 12 23:08 auto.cnf

drwx—— 2 mysqlmysql 4096 Aug 12 23:41 ddimcn

-rw-rw—- 1 mysql mysql18874368 Aug 12 23:47 ibdata1

-rw-rw—- 1 mysqlmysql 5242880 Aug 12 23:47 ib_logfile0

-rw-rw—- 1 mysqlmysql 5242880 Aug 12 23:08 ib_logfile1

drwx–x–x 2 mysqlmysql 4096 Aug 12 22:52 mysql

-rw-rw—- 1 mysqlmysql 1107 Aug 12 23:47mysql-bin.000001