When a user accesses a view, the system enforces all security constraints in the base tables referenced by the view, whether or not the view contains the security constraint columns.
A CREATE VIEW or REPLACE VIEW statement can reference both row level security and non-row level security base tables, but all of the row level security base tables must contain the same security constraints or the system returns an error.
If you add or change security constraints in base tables referenced by a view, and as a result the row level security tables no longer contain matching sets of security constraints, subsequent requests to access the view fail with an error.