You need to create superuser for database administration. Here is how to create user with superuser privileges in PostgreSQL.
How To Create User With Superuser Privileges in PostgreSQL
superuser
How To Change User to Superuser in PostgreSQL
Sometimes you may need to change user to superuser in PostgreSQL. Here is alter user to superuser in PostgreSQL.
How to Create User in PostgreSQL
Sometimes you may need to create user in PostgreSQL. Here are the steps to create user in PostgreSQL.