create db in postgres as user code example
Example 1: create db user postgres
sudo -u postgres psql
postgres=# create database mydb;
postgres=# create user myuser with encrypted password 'mypass';
postgres=# grant all privileges on database mydb to myuser;
Example 2: How do I add a user to a postgres database? cli
GRANT ALL PRIVILEGES ON DATABASE yourdbname TO youruser;
Example 3: how to create new user and database postgresql in ubuntu
$ sudo -u postgres createuser <username>