I'm not sure what you mean here? The "select 'checkbox' as component" is just an example, but nothing prevents you from creating a my_form table and writing it

I'm not sure what you mean here? The "select 'checkbox' as component" is just an example, but nothing prevents you from creating a my_form table and writing it as "select * from my_form" instead. You don't need any special feature from SQLPage for that.