yum -y install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-6-x86_64/pgdg-centos96-9.6-3.noarch.rpm
yum -y install postgresql96-9.6.7
yum -y install postgresql96-server-9.6.7
service postgresql-9.6 initdb
chkconfig postgresql-9.6 on
service postgresql-9.6 start
su - postgres
psql
查看库
\l；
创建库
create database abc;
切换库：\c abc;
查看表
\d;
