Postgresql install on centos 7

# add the postgresql 9.6 repository

yum install  https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-redhat96-9.6-3.noarch.rpm -y

# install postgresql 9.6

yum install postgresql96 postgresql96-server postgresql96-contrib postgresql96-libs -y

# start postgresql

/usr/pgsql-9.6/bin/postgresql96-setup initdb

systemctl enable postgresql-9.6.service

systemctl start postgresql-9.6.service

# accessing database

su – postgres

psql