RLS with multiple roles in Power BI - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does RLS stand for in Power BI?

RLS stands for Row-Level Security. It controls data access by restricting rows in tables based on user roles.

intermediate

How does Power BI handle multiple roles for a single user?

Power BI combines all roles assigned to a user using a logical OR. The user sees data allowed by any of their roles.

beginner

What is a practical example of using multiple roles in RLS?

Imagine a sales manager who is also part of the finance team. They get access to sales data for their region (role 1) and financial reports (role 2). Both roles apply together.

intermediate

How do you test multiple roles in Power BI Desktop?

Use the 'View as Roles' feature. Select multiple roles to simulate combined access and verify the data shown matches expectations.

beginner

Can a user be assigned to no roles in Power BI RLS?

Yes. If a user has no roles assigned, they see all data unless the model has a default deny rule or other restrictions.

What happens when a user belongs to multiple RLS roles in Power BI?

A They see no data unless roles are merged manually.

B They see only data allowed by the first role assigned.

C They see data allowed by all their roles combined.

D They must choose one role to view data.

Power BI combines all roles assigned to a user using a logical OR, so the user sees data allowed by any of their roles.

Which Power BI feature lets you simulate multiple roles to test RLS?

A Data view

B View as Roles

C Manage Roles

D Publish to Web

The 'View as Roles' feature allows you to select one or more roles to simulate how data appears for users with those roles.

If a user has no roles assigned in RLS, what data do they see by default?

A All data in the model

B Only data from the first table

C No data at all

D Data filtered by the last role created

Without any roles assigned, users see all data unless the model has explicit deny rules.

Which logical operator does Power BI use to combine multiple roles for a user?

A XOR

B AND

C NOT

D OR

Power BI uses a logical OR to combine multiple roles, meaning data allowed by any role is visible.

Why might you assign multiple roles to a single user in Power BI?

A To give access to different data sets based on job functions

B Because Power BI requires at least two roles per user

C To confuse the user

D To restrict data more strictly

Multiple roles let you tailor data access for users with multiple responsibilities or job functions.

Explain how Power BI combines multiple RLS roles assigned to a user and why this is useful.

Think about how access from different roles adds up.

Describe how you would test multiple RLS roles in Power BI Desktop before publishing a report.

Look for a feature that simulates user roles.