CentOS安装MySQL数据库

检查已安装的数据库rpm-qa|grep-imysqlrpm-qa|grep-imariadb检查服务状态systemctl status mysqld2/dev/null||echoMySQL 未安装systemctl status mariadb2/dev/null||echoMariaDB 未安装停止 MariaDB 服务sudosystemctl stop mariadb卸载 MariaDBsudoyum remove mariadb-server mariadb-y或者在 CentOS 8/9 上sudodnf remove mariadb-server mariadb-y清理配置文件sudorm-rf/var/lib/mysqlsudorm-rf/etc/my.cnf.d下载 MySQL YUM 仓库配置包cd/tmpwgethttps://dev.mysql.com/get/mysql80-community-release-el7-7.noarch.rpmCentOS 8/9 使用wgethttps://dev.mysql.com/get/mysql80-community-release-el8-4.noarch.rpm安装仓库配置sudorpm-ivhmysql80-community-release-el7-7.noarch.rpm验证仓库添加成功yum repolist enabled|grepmysql查看可用版本yum repolist all|grepmysql查看当前启用的版本yum repoinfo mysql80-community如需安装 MySQL 5.7示例sudoyum-config-manager--disablemysql80-communitysudoyum-config-manager--enablemysql57-community验证版本选择yum repolist enabled|grepmysqlCentOS 7sudoyuminstallmysql-community-server-yCentOS 8/9sudodnfinstallmysql-community-server-y安装完整开发包可选sudoyuminstallmysql-community-devel mysql-community-client-y启动 MySQL 服务sudosystemctl start mysqld设置开机自启sudosystemctlenablemysqld检查服务状态sudosystemctl status mysqld