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CentOS 7中，yum默认安装的是Mariadb，但我想使用MySQL，于是自己下载
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wget ftp://ftp.icm.edu.pl/vol/rzm3/linux-oracle-repo/OracleLinux/OL7/MySQL56/x86_64/mysql-community-client-5.6.34-2.el7.x86_64.rpm
wget ftp://ftp.icm.edu.pl/vol/rzm3/linux-oracle-repo/OracleLinux/OL7/MySQL56/x86_64/mysql-community-devel-5.6.34-2.el7.x86_64.rpm
wget ftp://ftp.icm.edu.pl/vol/rzm3/linux-oracle-repo/OracleLinux/OL7/MySQL56/x86_64/mysql-community-libs-5.6.34-2.el7.x86_64.rpm
wget ftp://ftp.icm.edu.pl/vol/rzm3/linux-oracle-repo/OracleLinux/OL7/MySQL56/x86_64/mysql-community-common-5.6.34-2.el7.x86_64.rpm
wget dev.mysql.com/pub/Downloads/MySQL-5.7/mysql-community-devel-5.7.24-1.el7.x86_64.rpm
wget dev.mysql.com/pub/Downloads/MySQL-5.7/mysql-community-libs-5.7.24-1.el7.x86_64.rpm
根据自己的情况，选择安装5.6还是5.7。
原文：https://www.cnblogs.com/t-road/p/11211736.html