1、添加yum源
2、清除之前的yum源并生成新的缓存
3、yum install postgresql96-server postgresql96-contrib postgresql96-devel
4、输入y并回车继续安装
5、验证是否安装成功rpm -aq| grep postgres
6、初始化数据库/usr/pgsql-9.6/bin/postgresql96-setup initdb
7、[root@vm-122-136 ~]# systemctl enable postgresql-9.6Cr髫潋啜缅eated symlink from /etc/systemd/system/multi-user.target.wants/postgresql-9.6.service to /usr/lib/systemd/system/postgresql-9.6.service.You have new mail in /var/spool/mail/root[root@vm-122-136 ~]# systemctl start postgresql-9.6
8、连接数据库并修改密码
