SQL Server Views: Understanding View Security

Understanding View Security in SQL Server

In SQL Server, security on views is managed through permissions. You can grant or deny SELECT permissions on views independently of the underlying tables.

This allows administrators to expose only specific columns or rows to users, enhancing data security.

• Users need SELECT permission on the view to query it.
• Users do not need direct permissions on the underlying tables if ownership chaining applies.
• Permissions can be granted or revoked at the view level.

Best Practices for Securing Views

To effectively secure views, follow best practices that minimize risk and simplify permission management.

• Grant SELECT permissions on views, not on underlying tables.
• Use schemas to group related objects and manage ownership consistently.
• Avoid breaking ownership chains by keeping view and tables under the same owner.
• Limit the columns and rows exposed in views to only what users need.
• Regularly review permissions to ensure they follow the principle of least privilege.

Example: Granting Permissions on a View

Here is an example of how to grant SELECT permission on a view without granting access to the underlying table.