How to Create a PostgreSQL Role with Limited Connections

Create a Role with Limited Connection Attempts

Write a PostgreSQL query to create a role limited_user with a maximum of 3 connections.

Solution:

-- Create a role with limited connections
CREATE ROLE limited_user WITH LOGIN CONNECTION LIMIT 3;

Explanation:

• Purpose of the Query:
• Restricts simultaneous database connections.
• Key Components:
• CONNECTION LIMIT 3: Limits connections to 3.
• Real-World Application:
• Prevents excessive resource usage.

For more Practice: Solve these Related Problems:

• Write a PostgreSQL query to create a role restricted_user with a maximum of 5 concurrent connections and set a login time window.
• Write a PostgreSQL query to create a role temp_access that limits connection attempts to 3 per hour.
• Write a PostgreSQL query to create a role secure_role that has a maximum connection limit and is only allowed to connect from specified IP addresses.
• Write a PostgreSQL query to create a role controlled_user with both a connection limit and a timeout period for idle sessions.

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Previous PostgreSQL Exercise: Lock a User Account.