How to Set Up Role-Based Access Control in SQL

Last update on September 25 2025 07:24:10 (UTC/GMT +8 hours)

Implementing Role-Based Access Control (RBAC)

Write a SQL query to implement role-based access control (RBAC) for a database.

Solution:

-- Create roles for different access levels.
CREATE ROLE ReadOnlyRole;
CREATE ROLE ReadWriteRole;

-- Grant permissions to roles.
GRANT SELECT ON Employees TO ReadOnlyRole;
GRANT SELECT, INSERT, UPDATE ON Employees TO ReadWriteRole;

-- Assign users to roles.
ALTER ROLE ReadOnlyRole ADD MEMBER UserJ;
ALTER ROLE ReadWriteRole ADD MEMBER UserK;

Explanation:

Purpose of the Query :

The goal is to demonstrate how to implement RBAC to manage database access efficiently.

Key Components :

CREATE ROLE: Defines roles for grouping users.
GRANT: Assigns permissions to roles.
ALTER ROLE: Adds users to roles.

Why Use RBAC? :

RBAC simplifies permission management by grouping users with similar access needs.
It enhances security and reduces administrative overhead.

Real-World Application :

In enterprise systems, RBAC ensures consistent access across departments.

Additional Notes:

Use RBAC to enforce least privilege and separation of duties.
Regularly review roles and permissions to ensure compliance.
Important Considerations:

Avoid creating too many roles, as it can complicate management.

For more Practice: Solve these Related Problems:

Write a SQL query to create roles for "Read-Only Users" and "Power Users" and assign appropriate permissions.
Write a SQL query to implement RBAC for a database, ensuring separation of duties between departments.
Write a SQL query to create a role named "Auditors" with SELECT permissions on all audit-related tables.
Write a SQL query to assign multiple users to a role named "Managers" with UPDATE and DELETE permissions.

Go to:

PREV : Granting Ownership of a Schema to a User.
NEXT : Auditing Failed Login Attempts.

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