Row-Level Security (RLS) in Power BI allows you to restrict data access for different users based on their roles and permissions. It is a powerful feature that helps in maintaining data security and ensuring that sensitive information is only visible to the intended audience.
To apply RLS in Power BI, follow these steps:
- Open your Power BI desktop application and access the “Modeling” section.
- Create a new role by selecting “Manage Roles” from the “Table Tools” tab.
- In the “Manage Roles” dialog, click on “Create” to define a new role.
- Specify the name and description for the role, and then define the rules for data access.
- You can define rules by using DAX expressions to filter the data based on predefined conditions or attributes.
- For example, if you want to restrict access to a specific region’s data, you can use a DAX expression like:
CALCULATE(TABLEROWS(Table), Table[Region] = "North"). - Once the rules are defined, assign users or groups to the role by clicking on “Add.” This will allow them to access only the data defined by the rules of the role.
- Save the changes and publish the report to Power BI service or share it with the intended users.
- Users will only see the data that is permitted by their assigned role when they interact with the report or dashboard.
By implementing RLS, you can ensure that different users see different data based on their roles and permissions, allowing you to control data access and maintaining data confidentiality.