一、简介

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MySQL 是最流行的关系型数据库管理系统，在 WEB 应用方面 MySQL 是最好的 RDBMS(Relational Database Management System：关系数据库管理系统)应用软件之一。

二、下载

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下载地址：https://www.mysql.com/

选MySQL Community downloads

选MySQL Community Server

选Ubuntu

选Ubuntu Linux 20.04 (x86, 64-bit), DEB Bundle

选 No thanks, just start my download. 

            下载后得到：mysql-server_8.0.21-1ubuntu20.04_amd64.deb-bundle.tar

                将它放到soft/mysql-8.0.21共享目录下

三、安装

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    1.解压缩bundle.tar 文件

            tar xvf mysql-server_8.0.21-1ubuntu20.04_amd64.deb-bundle.tar

            得到如下文件

                libmysqlclient21_8.0.21-1ubuntu20.04_amd64.deb

                libmysqlclient-dev_8.0.21-1ubuntu20.04_amd64.deb

                mysql-client_8.0.21-1ubuntu20.04_amd64.deb

                mysql-common_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-client_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-client-core_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-server_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-server-core_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-server-debug_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-test_8.0.21-1ubuntu20.04_amd64.deb

                mysql-community-test-debug_8.0.21-1ubuntu20.04_amd64.deb

                mysql-server_8.0.21-1ubuntu20.04_amd64.deb

                mysql-server_8.0.21-1ubuntu20.04_amd64.deb-bundle.tar

                mysql-testsuite_8.0.21-1ubuntu20.04_amd64.deb

        2.安装这些文件

                tar xvf mysql-server_8.0.21-1ubuntu20.04_amd64.deb-bundle.tar

               以下安装过程，要是出现依赖包未安装的错误提示，执行

                        sudo apt-get -f install

                sudo dpkg -i mysql-common_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i libmysqlclient21_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i libmysqlclient-dev_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-community-client-core_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-community-client_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-client_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-community-server-debug_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-community-test-debug_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-community-server-core_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-community-server_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-server_8.0.21-1ubuntu20.04_amd64.deb

                出现如下界面，输入root作为root密码

                sudo dpkg -i mysql-community-test_8.0.21-1ubuntu20.04_amd64.deb

                sudo apt-get -f install

                sudo dpkg -i mysql-server_8.0.21-1ubuntu20.04_amd64.deb

                sudo dpkg -i mysql-testsuite_8.0.21-1ubuntu20.04_amd64.deb

四、配置

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        基本不用配置

五、验证

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                mysql --version

                mysql -u root -p

                按提示输入root用户密码

                show databases；

            SELECT user, host FROM mysql.user;

        更详细的验证和排错参考“好玩的大数据之05：MySQL安装方法二（利用apt-get安装）”