.alter materialized-view policy row_level_security command

Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer

Enables or disables a materialized view's row_level_security policy. The Row Level Security simplifies the design and coding of security. It lets you apply restrictions on data row access in your application. For example, limit user access to rows relevant to their department, or restrict customer access to only the data relevant to their company.

Note

Even when the policy is disabled, you can force it to apply to a single query. Enter the following line before the query:

set query_force_row_level_security;

This is useful if you want to try various queries for row_level_security, but don’t want it to actually take effect on users. Once you’re confident in the query, enable the policy.

For more information about running queries on the row level security policy, see row_level_security policy.

Permissions

You must have at least Database Admin permissions to run this command.

Syntax

.alter materialized-view MaterializedViewName policy row_level_security [enable | disable] Query

Learn more about syntax conventions.

Parameters

Name	Type	Required	Description
MaterializedViewName	string	✔️	The name of the materialized view for which to turn on or off the row level security policy.
Query	string	✔️	The query to run. For more information, see row_level_security policy.

Example

Enable the policy at the materialized-view level:

.alter materialized-view MyMaterializeView policy row_level_security enable "AnonymizeSensitiveData"

Disable the policy at the materialized-view level:

.alter materialized-view MyMaterializeView policy row_level_security disable "AnonymizeSensitiveData"