In this post, I am sharing a script for transforming normal DB user to Super User in PostgreSQL.

The Super User is the admin user and it has all kind of access to PostgreSQL Server. We can create multiple superusers in PostgreSQL.

I need this kind of handy commands/scripts because when any new dba join the team, giving basic permission of database and later the same user requires superuser permission.

Convert a user into Super User:

ALTER USER user_name WITH SUPERUSER;

Revoke Super User Permission:

ALTER USER user_name WITH NOSUPERUSER;

In this post, I am sharing a REVOKE script for stopping the new user from creating a new Table in PostgreSQL Database.

Whenever you create a new DB User in PostgreSQL, by default he or she can create a table in the PUBLIC schema of the assigned database.

If you want to stop this, revoke CREATE permission of that user and give only read-only permission.

PostgreSQL: Script to Create a Read-Only Database User

PostgreSQL: Why New User can access all Databases without any Grants

Revoke permission for all users (For public schema):

REVOKE CREATE ON SCHEMA public FROM public;

Revoke permission for a specific user (for public schema):

REVOKE CREATE ON schema public FROM user_name;