nis

1.查看版本 停库[root@5haocentos ~]# cat /etc/redhat-release CentOS Linux release 7.4.1708 (Core) systemctl stop mysqld.service2.卸载+删除cd /var/lib/ rm -rf mysql cd /usr/share/ rm -rf mysql/ rpm -qa |grep...

1.安装MySQL1.1 更换源指定安装版本wgethttp://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpmyumlocalinstall mysql57-community-release-el7-8.noarch.rpmyum repolist enabled | grep"mysql.*-community.*" ...

1.只删除表数据,不删除表结构truncate table table_name;

1.添加用户[root@web01 tools]# useradd -s /sbin/nologin -M mysql [root@lb01 ~]# id mysql uid=27(mysql) gid=27(mysql) groups=27(mysql)2.安装相关依赖yum install ncurses-devel libaio-devel -y rpm -qa ncurses-devel...