centos7 mysql数据库安装和部署
发布时间:2023-09-09 15:07:30 所属栏目:MySql教程 来源:
导读:一、系统环境
[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)
二、mysql安装
#yum install mysql mysql-server mysql-devel
安装mysql-server失败,
[
[root@localhost ~]# cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)
二、mysql安装
#yum install mysql mysql-server mysql-devel
安装mysql-server失败,
[
一、系统环境 [root@localhost ~]# cat /etc/redhat-release CentOS Linux release 7.6.1810 (Core) 二、mysql安装 #yum install mysql mysql-server mysql-devel 安装mysql-server失败, [root@localhost ~]# yum install mysql-server Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile base: mirrors.sina.cn extras: mirrors.sina.cn updates: mirrors.sina.cn No package mysql-server available. Error: Nothing to do 这是因为CentOS 7用mariadb代替了MySQL数据库软件。 有两种解决办法: 1、方法一:安装mariadb MariaDB数据库管理系统是MySQL的一个分支,主要由开源社区在维护,采用GPL授权许可。开发这个分支的原因之一是:甲骨文公司收购了MySQL后,有将MySQL闭源的潜在风险,因此社区采用分支的方式来避开这个风险。MariaDB的目的是完全兼容MySQL,包括API和命令行,使之能轻松成为MySQL的代替品。 安装mariadb,大小59 M。 [root@localhost ~]# yum install mariadb-server mariadb mariadb数据库的相关命令是: systemctl start mariadb #启动MariaDB systemctl stop mariadb #停止MariaDB systemctl restart mariadb #重启MariaDB systemctl enable mariadb #设置开机启动 所以先启动数据库 [root@localhost ~]# systemctl start mariadb 然后就可以正常使用mysql了 [root@localhost ~]# mysql -u root -p Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 3 Server version: 5.5.41-MariaDB MariaDB Server Copyright (c) 2000, 2014, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ 4 rows in set (0.00 sec) MariaDB [(none)]> 安装mariadb后显示的也是 MariaDB [(none)]> ,可能看起来有点不习惯。下面是第二种方法。 2、方法二:官网下载安装mysql-server 下载mysql: wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm 源码安装: rpm -ivh mysql-community-release-el7-5.noarch.rpm 安装服务: yum install mysql-community-server 安装成功后重启mysql服务。 service mysqld restart 初次安装mysql,root账户没有密码。 [root@localhost ~]# mysql -u root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.6.26 MySQL Community Server (GPL) Copyright (c) 2000, 2015, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | test | +--------------------+ 4 rows in set (0.01 sec) mysql> 设置mysql登录密码: mysql> set password for 'root'@'localhost' =password('password'); Query OK, 0 rows affected (0.00 sec) mysql> 不需要重启数据库即可生效。 在mysql安装过程中如下内容: Installed: mysql-community-client.x86_64 0:5.6.26-2.el7 mysql-community-devel.x86_64 0:5.6.26-2.el7 mysql-community-libs.x86_64 0:5.6.26-2.el7 mysql-community-server.x86_64 0:5.6.26-2.el7 Dependency Installed: mysql-community-common.x86_64 0:5.6.26-2.el7 Replaced: mariadb.x86_64 1:5.5.41-2.el7_0 mariadb-devel.x86_64 1:5.5.41-2.el7_0 mariadb-libs.x86_64 1:5.5.41-2.el7_0 mariadb-server.x86_64 1:5.5.41-2.el7_0 所以安装完以后mariadb自动就被替换了,将不再生效。 [root@localhost ~]# rpm -qa |grep mariadb [root@localhost ~]# 三、配置mysql 1、编码 mysql配置文件为/etc/my.cnf 最后加上编码配置 [mysql] default-character-set =utf8 这里的字符编码必须和/usr/share/mysql/charsets/Index.xml中一致。 2、远程连接设置 把在所有数据库的所有表的所有权限赋值给位于所有IP地址的root用户。 mysql> grant all privileges on . to root@'%'identified by 'password'; 如果是新用户而不是root,则要先新建用户 mysql>create user 'username'@'%' identified by 'password'; 此时就可以进行远程连接了。 (编辑:聊城站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
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