Linux下mysql安装和配置教程

mysql安装配置：

1.下载

进入要下载的版本的目录，选择.tar.gz文件下载

2.安装

使用tar解压要安装的目录即可，以5.6.版本为例

[root@localhost mysql]# tar -zxvf mysql-5.6.33-linux-glibc2.5-x86_64.tar.gz

[root@localhost mysql]# mv mysql-5.6.33-linux-glibc2.5-x86_64/ mysql

3.添加用户和用户组

#添加用户组

[root@localhost mysql]# groupadd mysql

#添加用户mysql 到用户组mysql

[root@localhost mysql]# useradd -g mysql mysql

4.配置mysql

创建数据目录

[root@localhost mysql]# mkdir data

数据库数据默认目录datadir=/var/lib/mysql，可通过vim /etc/my.cnf 查看

设置权限：

[root@localhost mysql]# chown -R mysql:mysql data

[root@localhost mysql]# cd data

[root@localhost data]# pwd

/home/svr/application/mysql/data

执行安装脚本：

[root@localhost mysql]# ./scripts/mysql_install_db --user=mysql --datadir=/home/svr/application/mysql/data

[root@localhost mysql]# cp support-files/mysql.server /etc/init.d/mysqld

[root@localhost mysql]# chmod 755 /etc/init.d/mysqld

[root@localhost mysql]# cp support-files/my-default.cnf /etc/my.cnf

#修改启动脚本

[root@localhost mysql]# vi /etc/init.d/mysqld

#修改项(修改成自己服务上的目录)：

basedir=/home/svr/application/mysql/mysql
datadir=/home/svr/application/mysql/data

#启动服务

[root@localhost mysql]# service mysqld start

相关命令：

#启动mysql

service mysqld start

#关闭mysql

service mysqld stop

#查看运行状态

service mysqld status

#加入环境变量，编辑 /etc/profile，这样可以在任何地方用mysql命令了

[root@localhost mysql]# vi /etc/profile

export PATH=$PATH:/home/svr/application/mysql/mysql

#测试连接

[root@localhost mysql]# ./mysql/bin/mysql -uroot

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.33 MySQL Community Server (GPL)
Copyright (c) 2000, 2016, 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>


mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| test               |
+--------------------+
4 rows in set (0.31 sec)

5、建库与删库：

create database 库名;

drop database 库名;

建表：

use 库名;

create table 表名(字段列表);

drop table 表名;