MySQL环境搭建

所有平台的MySQL下载地址:http://www.mysql.com/downloads。

1、简单介绍MySQL安装

Linux上安装MySQL的两种方式:源码安装、RPM包安装

1.1 MySQL的各RPM包:

  ①MySQL:MySQL服务器

  ②MySQL-client:MySQL客户端程序,用于连接并操作Mysql服务器

  ③MySQL-devel:库和包含文件,若想编译其它MySQL客户端(例如Perl模块),则需要安装该RPM包

  ④MySQL-shared:包含某些语言和应用程序需要动态装载的共享库(libmysqlclient.so*)

  ⑤MySQL-bench:数据库服务器的基准和性能测试工具

1.2 RPM包安装MySQL:

①MySQL官网下载版本tar包,上传到linux系统

  mysql-5.7.14-1.el6.x86_64.rpm-bundle.tar

②新建/software目录,将tar包mv到该目录下,tar开

  tar xf mysql-5.7.14-1.el6.x86_64.rpm-bundle.tar

③利用yum安装(推荐)

  yum localinstall /software/*.rpm

④MySQL初始化、配置/etc/my.conf、关闭防火墙和selinux

2、初始化和设置

2.1、初始化启动MySQL服务:

[root@mysqlserver ~]# service mysqld start

netstat -an |grep :3306

mysql的初始密码在 /var/log/mysqld.log 里面

A temporary password is generated for root@localhost: a?tMa%FsE7a. 密码

vim /etc/my.cnf  添加:validate_password=off

[root@mysqlserver ~]# service mysqld restart

用初始密码登录进去之后:set password=password('123');

如果安装的是5.6版本的MySQL,在安装成功后,默认的root用户密码为空,命令行创建root用户的密码:

[root@mysqlserver ~]# mysqladmin -u root password 123

2.2、连接到MySQL服务器:

[root@mysqlserver ~]# mysql -uroot -p -S /var/lib/mysql/mysql.sock
Enter password:***
mysql> status  查看数据库状态
--------------
mysql Ver 14.14 Distrib 5.7.14, for Linux (x86_64) using EditLine wrapper

Connection id:    13
Current database:    db1
Current user:    root@localhost
SSL:    Not in use
Current pager:    stdout
Using outfile:    ''
Using delimiter:    ;
Server version:    5.7.14 Source distribution
Protocol version:    10
Connection:    Localhost via UNIX socket
Server characterset:    latin1
Db characterset:    latin1
Client characterset:    utf8
Conn. characterset:    utf8
UNIX socket:    /var/lib/mysql/mysql.sock
Uptime:    2 days 13 hours 25 min 42 sec

Threads: 2 Questions: 10793065 Slow queries: 0 Opens: 646 Flush tables: 1 Open tables: 426 Queries per second avg: 48.806
--------------

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
4 rows in set (0.04 sec)

mysql> quit  退出MySQL
Bye
[root@mysqlserver ~]#

3.3、MySQL的配置文件/etc/my.cnf

[root@mysqlserver ~]# cat /etc/my.cnf
[mysqld]
datadir=/mydata
socket=/var/lib/mysql/mysql.sock
symbolic-links=0

[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/mydata/mysqld.pid

注意:MySQL在windows的配置文件是my.ini

posted @ 2021-02-18 19:17  全栈老刘  阅读(153)  评论(0编辑  收藏  举报