There are two main methods for creating users in PostgreSQL:

1. Using the createuser client utility: This is a command-line tool specifically designed for user management in PostgreSQL.

2. Using the psql interactive shell: This is the PostgreSQL command-line interface where you can directly execute SQL statements, including user creation with the CREATE ROLE command (often shortened to CREATE USER).

Here’s a breakdown of both methods:

Using createuser:

• This method requires you to be logged in as a superuser or a user with the CREATEROLE privilege.
• The syntax is:

createuser [options] username

• Some common options include:

  • -S: Create a superuser
  • -D: Create a user with the CREATEDB privilege (can create databases)
  • -R: Create a user with the CREATEROLE privilege (can create other users)
  • -P: Prompt for a password interactively

• For example, to create a regular user named new_user with a password, you would run:

createuser -P new_user

Using psql:

• Connect to the PostgreSQL server using psql.

• Use the CREATE ROLE command with similar options as createuser.

• The syntax is:

CREATE ROLE [options] username;  Use code with caution.

• Some commonly used options are the same as createuser.
• For instance, to create a user named new_user with a password set interactively, you would run within psql:

CREATE USER new_user WITH ENCRYPTED PASSWORD;

• Always follow security best practices when creating users. Avoid granting unnecessary privileges and use strong passwords.
• Refer to the PostgreSQL documentation for a detailed list of options and functionalities for both createuser and CREATE ROLE https://www.postgresql.org/docs/8.0/sql-createuser.html.

I hope this helps!

Ekta

Now, working with Hostripples as a Sr. Digital Marketing Executive.

A passionate Digital Marketing Expert and Content Writer was working with MilesWeb.

I am passionate about writing articles related to Information Technology and Digital Marketing. In my free time, I love to listen to songs, spend time with my daughters, and hang around social networking sites to craft new techniques to boost my social media skills.